diff --git a/backend-node/src/controllers/entityJoinController.ts b/backend-node/src/controllers/entityJoinController.ts
index fbb88750..013b2034 100644
--- a/backend-node/src/controllers/entityJoinController.ts
+++ b/backend-node/src/controllers/entityJoinController.ts
@@ -30,6 +30,7 @@ export class EntityJoinController {
         autoFilter, // 🔒 멀티테넌시 자동 필터
         dataFilter, // 🆕 데이터 필터 (JSON 문자열)
         excludeFilter, // 🆕 제외 필터 (JSON 문자열) - 다른 테이블에 이미 존재하는 데이터 제외
+        deduplication, // 🆕 중복 제거 설정 (JSON 문자열)
         userLang, // userLang은 별도로 분리하여 search에 포함되지 않도록 함
         ...otherParams
       } = req.query;
@@ -139,6 +140,24 @@ export class EntityJoinController {
         }
       }
 
+      // 🆕 중복 제거 설정 처리
+      let parsedDeduplication: {
+        enabled: boolean;
+        groupByColumn: string;
+        keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
+        sortColumn?: string;
+      } | undefined = undefined;
+      if (deduplication) {
+        try {
+          parsedDeduplication =
+            typeof deduplication === "string" ? JSON.parse(deduplication) : deduplication;
+          logger.info("중복 제거 설정 파싱 완료:", parsedDeduplication);
+        } catch (error) {
+          logger.warn("중복 제거 설정 파싱 오류:", error);
+          parsedDeduplication = undefined;
+        }
+      }
+
       const result = await tableManagementService.getTableDataWithEntityJoins(
         tableName,
         {
@@ -156,13 +175,26 @@ export class EntityJoinController {
           screenEntityConfigs: parsedScreenEntityConfigs,
           dataFilter: parsedDataFilter, // 🆕 데이터 필터 전달
           excludeFilter: parsedExcludeFilter, // 🆕 제외 필터 전달
+          deduplication: parsedDeduplication, // 🆕 중복 제거 설정 전달
         }
       );
 
+      // 🆕 중복 제거 처리 (결과 데이터에 적용)
+      let finalData = result;
+      if (parsedDeduplication?.enabled && parsedDeduplication.groupByColumn && Array.isArray(result.data)) {
+        logger.info(`🔄 중복 제거 시작: 기준 컬럼 = ${parsedDeduplication.groupByColumn}, 전략 = ${parsedDeduplication.keepStrategy}`);
+        const originalCount = result.data.length;
+        finalData = {
+          ...result,
+          data: this.deduplicateData(result.data, parsedDeduplication),
+        };
+        logger.info(`✅ 중복 제거 완료: ${originalCount}개 → ${finalData.data.length}개`);
+      }
+
       res.status(200).json({
         success: true,
         message: "Entity 조인 데이터 조회 성공",
-        data: result,
+        data: finalData,
       });
     } catch (error) {
       logger.error("Entity 조인 데이터 조회 실패", error);
@@ -537,6 +569,98 @@ export class EntityJoinController {
       });
     }
   }
+
+  /**
+   * 중복 데이터 제거 (메모리 내 처리)
+   */
+  private deduplicateData(
+    data: any[],
+    config: {
+      groupByColumn: string;
+      keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
+      sortColumn?: string;
+    }
+  ): any[] {
+    if (!data || data.length === 0) return data;
+
+    // 그룹별로 데이터 분류
+    const groups: Record<string, any[]> = {};
+
+    for (const row of data) {
+      const groupKey = row[config.groupByColumn];
+      if (groupKey === undefined || groupKey === null) continue;
+
+      if (!groups[groupKey]) {
+        groups[groupKey] = [];
+      }
+      groups[groupKey].push(row);
+    }
+
+    // 각 그룹에서 하나의 행만 선택
+    const result: any[] = [];
+
+    for (const [groupKey, rows] of Object.entries(groups)) {
+      if (rows.length === 0) continue;
+
+      let selectedRow: any;
+
+      switch (config.keepStrategy) {
+        case "latest":
+          // 정렬 컬럼 기준 최신 (가장 큰 값)
+          if (config.sortColumn) {
+            rows.sort((a, b) => {
+              const aVal = a[config.sortColumn!];
+              const bVal = b[config.sortColumn!];
+              if (aVal === bVal) return 0;
+              if (aVal > bVal) return -1;
+              return 1;
+            });
+          }
+          selectedRow = rows[0];
+          break;
+
+        case "earliest":
+          // 정렬 컬럼 기준 최초 (가장 작은 값)
+          if (config.sortColumn) {
+            rows.sort((a, b) => {
+              const aVal = a[config.sortColumn!];
+              const bVal = b[config.sortColumn!];
+              if (aVal === bVal) return 0;
+              if (aVal < bVal) return -1;
+              return 1;
+            });
+          }
+          selectedRow = rows[0];
+          break;
+
+        case "base_price":
+          // base_price가 true인 행 선택
+          selectedRow = rows.find((r) => r.base_price === true || r.base_price === "true") || rows[0];
+          break;
+
+        case "current_date":
+          // 오늘 날짜 기준 유효 기간 내 행 선택
+          const today = new Date().toISOString().split("T")[0];
+          selectedRow = rows.find((r) => {
+            const startDate = r.start_date;
+            const endDate = r.end_date;
+            if (!startDate) return true;
+            if (startDate <= today && (!endDate || endDate >= today)) return true;
+            return false;
+          }) || rows[0];
+          break;
+
+        default:
+          selectedRow = rows[0];
+      }
+
+      if (selectedRow) {
+        result.push(selectedRow);
+      }
+    }
+
+    return result;
+  }
 }
 
 export const entityJoinController = new EntityJoinController();
diff --git a/backend-node/src/services/tableManagementService.ts b/backend-node/src/services/tableManagementService.ts
index b21a7c61..70ed6205 100644
--- a/backend-node/src/services/tableManagementService.ts
+++ b/backend-node/src/services/tableManagementService.ts
@@ -3800,6 +3800,15 @@ export class TableManagementService {
     const cacheableJoins: EntityJoinConfig[] = [];
     const dbJoins: EntityJoinConfig[] = [];
 
+    // 🔒 멀티테넌시: 회사별 데이터 테이블은 캐시 사용 불가 (company_code 필터링 필요)
+    const companySpecificTables = [
+      "supplier_mng",
+      "customer_mng", 
+      "item_info",
+      "dept_info",
+      // 필요시 추가
+    ];
+
     for (const config of joinConfigs) {
       // table_column_category_values는 특수 조인 조건이 필요하므로 항상 DB 조인
       if (config.referenceTable === "table_column_category_values") {
@@ -3808,6 +3817,13 @@ export class TableManagementService {
         continue;
       }
 
+      // 🔒 회사별 데이터 테이블은 캐시 사용 불가 (멀티테넌시)
+      if (companySpecificTables.includes(config.referenceTable)) {
+        dbJoins.push(config);
+        console.log(`🔗 DB 조인 (멀티테넌시): ${config.referenceTable}`);
+        continue;
+      }
+
       // 캐시 가능성 확인
       const cachedData = await referenceCacheService.getCachedReference(
         config.referenceTable,
diff --git a/frontend/components/common/ScreenModal.tsx b/frontend/components/common/ScreenModal.tsx
index f41c62af..f7926f43 100644
--- a/frontend/components/common/ScreenModal.tsx
+++ b/frontend/components/common/ScreenModal.tsx
@@ -174,8 +174,16 @@ export const ScreenModal: React.FC<ScreenModalProps> = ({ className }) => {
       // 🆕 editData가 있으면 formData와 originalData로 설정 (수정 모드)
       if (editData) {
         console.log("📝 [ScreenModal] 수정 데이터 설정:", editData);
-        setFormData(editData);
-        setOriginalData(editData); // 🆕 원본 데이터 저장 (UPDATE 판단용)
+        
+        // 🆕 배열인 경우 (그룹 레코드) vs 단일 객체 처리
+        if (Array.isArray(editData)) {
+          console.log(`📝 [ScreenModal] 그룹 레코드 ${editData.length}개 설정`);
+          setFormData(editData as any); // 배열 그대로 전달 (SelectedItemsDetailInput에서 처리)
+          setOriginalData(editData[0] || null); // 첫 번째 레코드를 원본으로 저장
+        } else {
+          setFormData(editData);
+          setOriginalData(editData); // 🆕 원본 데이터 저장 (UPDATE 판단용)
+        }
       } else {
         // 🆕 신규 등록 모드: 분할 패널 부모 데이터가 있으면 미리 설정
         // 🔧 중요: 신규 등록 시에는 연결 필드(equipment_code 등)만 전달해야 함
diff --git a/frontend/lib/api/entityJoin.ts b/frontend/lib/api/entityJoin.ts
index a3206df9..1e84588d 100644
--- a/frontend/lib/api/entityJoin.ts
+++ b/frontend/lib/api/entityJoin.ts
@@ -77,6 +77,12 @@ export const entityJoinApi = {
         filterColumn?: string;
         filterValue?: any;
       }; // 🆕 제외 필터 (다른 테이블에 이미 존재하는 데이터 제외)
+      deduplication?: {
+        enabled: boolean;
+        groupByColumn: string;
+        keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
+        sortColumn?: string;
+      }; // 🆕 중복 제거 설정
     } = {},
   ): Promise<EntityJoinResponse> => {
     // 🔒 멀티테넌시: company_code 자동 필터링 활성화
@@ -99,6 +105,7 @@ export const entityJoinApi = {
         autoFilter: JSON.stringify(autoFilter), // 🔒 멀티테넌시 필터링
         dataFilter: params.dataFilter ? JSON.stringify(params.dataFilter) : undefined, // 🆕 데이터 필터
         excludeFilter: params.excludeFilter ? JSON.stringify(params.excludeFilter) : undefined, // 🆕 제외 필터
+        deduplication: params.deduplication ? JSON.stringify(params.deduplication) : undefined, // 🆕 중복 제거 설정
       },
     });
     return response.data.data;
diff --git a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
index 8a4ebe8f..9da76559 100644
--- a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
+++ b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
@@ -32,6 +32,7 @@ import {
   DialogFooter,
   DialogDescription,
 } from "@/components/ui/dialog";
+import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Label } from "@/components/ui/label";
 import { useTableOptions } from "@/contexts/TableOptionsContext";
 import { TableFilter, ColumnVisibility, GroupSumConfig } from "@/types/table-options";
@@ -169,6 +170,11 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
   const [rightSearchQuery, setRightSearchQuery] = useState("");
   const [isLoadingLeft, setIsLoadingLeft] = useState(false);
   const [isLoadingRight, setIsLoadingRight] = useState(false);
+
+  // 🆕 추가 탭 관련 상태
+  const [activeTabIndex, setActiveTabIndex] = useState(0); // 0 = 기본 탭 (우측 패널), 1+ = 추가 탭
+  const [tabsData, setTabsData] = useState<Record<number, any[]>>({}); // 탭별 데이터 캐시
+  const [tabsLoading, setTabsLoading] = useState<Record<number, boolean>>({}); // 탭별 로딩 상태
   const [rightTableColumns, setRightTableColumns] = useState<any[]>([]); // 우측 테이블 컬럼 정보
   const [expandedItems, setExpandedItems] = useState<Set<any>>(new Set()); // 펼쳐진 항목들
   const [leftColumnLabels, setLeftColumnLabels] = useState<Record<string, string>>({}); // 좌측 컬럼 라벨
@@ -610,6 +616,41 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
     return result;
   }, []);
 
+  // 🆕 간단한 값 포맷팅 함수 (추가 탭용)
+  const formatValue = useCallback(
+    (
+      value: any,
+      format?: {
+        type?: "number" | "currency" | "date" | "text";
+        thousandSeparator?: boolean;
+        decimalPlaces?: number;
+        prefix?: string;
+        suffix?: string;
+        dateFormat?: string;
+      },
+    ): string => {
+      if (value === null || value === undefined) return "-";
+
+      // 날짜 포맷
+      if (format?.type === "date" || format?.dateFormat) {
+        return formatDateValue(value, format?.dateFormat || "YYYY-MM-DD");
+      }
+
+      // 숫자 포맷
+      if (
+        format?.type === "number" ||
+        format?.type === "currency" ||
+        format?.thousandSeparator ||
+        format?.decimalPlaces !== undefined
+      ) {
+        return formatNumberValue(value, format);
+      }
+
+      return String(value);
+    },
+    [formatDateValue, formatNumberValue],
+  );
+
   // 셀 값 포맷팅 함수 (카테고리 타입 처리 + 날짜/숫자 포맷)
   const formatCellValue = useCallback(
     (
@@ -960,11 +1001,12 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
 
             console.log("🔗 [분할패널] 복합키 조건:", searchConditions);
 
-            // 엔티티 조인 API로 데이터 조회
+            // 엔티티 조인 API로 데이터 조회 (🆕 deduplication 전달)
             const result = await entityJoinApi.getTableDataWithJoins(rightTableName, {
               search: searchConditions,
               enableEntityJoin: true,
               size: 1000,
+              deduplication: componentConfig.rightPanel?.deduplication, // 🆕 중복 제거 설정 전달
             });
 
             console.log("🔗 [분할패널] 복합키 조회 결과:", result);
@@ -1037,12 +1079,137 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
     ],
   );
 
+  // 🆕 추가 탭 데이터 로딩 함수
+  const loadTabData = useCallback(
+    async (tabIndex: number, leftItem: any) => {
+      const tabConfig = componentConfig.rightPanel?.additionalTabs?.[tabIndex - 1];
+      if (!tabConfig || !leftItem || isDesignMode) return;
+
+      const tabTableName = tabConfig.tableName;
+      if (!tabTableName) return;
+
+      setTabsLoading((prev) => ({ ...prev, [tabIndex]: true }));
+      try {
+        // 조인 키 확인
+        const keys = tabConfig.relation?.keys;
+        const leftColumn = tabConfig.relation?.leftColumn || keys?.[0]?.leftColumn;
+        const rightColumn = tabConfig.relation?.foreignKey || keys?.[0]?.rightColumn;
+
+        let resultData: any[] = [];
+
+        if (leftColumn && rightColumn) {
+          // 조인 조건이 있는 경우
+          const { entityJoinApi } = await import("@/lib/api/entityJoin");
+          const searchConditions: Record<string, any> = {};
+
+          if (keys && keys.length > 0) {
+            // 복합키
+            keys.forEach((key) => {
+              if (key.leftColumn && key.rightColumn && leftItem[key.leftColumn] !== undefined) {
+                searchConditions[key.rightColumn] = leftItem[key.leftColumn];
+              }
+            });
+          } else {
+            // 단일키
+            const leftValue = leftItem[leftColumn];
+            if (leftValue !== undefined) {
+              searchConditions[rightColumn] = leftValue;
+            }
+          }
+
+          console.log(`🔗 [추가탭 ${tabIndex}] 조회 조건:`, searchConditions);
+
+          const result = await entityJoinApi.getTableDataWithJoins(tabTableName, {
+            search: searchConditions,
+            enableEntityJoin: true,
+            size: 1000,
+          });
+
+          resultData = result.data || [];
+        } else {
+          // 조인 조건이 없는 경우: 전체 데이터 조회 (독립 탭)
+          const { entityJoinApi } = await import("@/lib/api/entityJoin");
+          const result = await entityJoinApi.getTableDataWithJoins(tabTableName, {
+            enableEntityJoin: true,
+            size: 1000,
+          });
+          resultData = result.data || [];
+        }
+
+        // 데이터 필터 적용
+        const dataFilter = tabConfig.dataFilter;
+        if (dataFilter?.enabled && dataFilter.conditions?.length > 0) {
+          resultData = resultData.filter((item: any) => {
+            return dataFilter.conditions.every((cond: any) => {
+              const value = item[cond.column];
+              const condValue = cond.value;
+              switch (cond.operator) {
+                case "equals":
+                  return value === condValue;
+                case "notEquals":
+                  return value !== condValue;
+                case "contains":
+                  return String(value).includes(String(condValue));
+                default:
+                  return true;
+              }
+            });
+          });
+        }
+
+        // 중복 제거 적용
+        const deduplication = tabConfig.deduplication;
+        if (deduplication?.enabled && deduplication.groupByColumn) {
+          const groupedMap = new Map<string, any>();
+          resultData.forEach((item) => {
+            const key = String(item[deduplication.groupByColumn] || "");
+            const existing = groupedMap.get(key);
+            if (!existing) {
+              groupedMap.set(key, item);
+            } else {
+              // keepStrategy에 따라 유지할 항목 결정
+              const sortCol = deduplication.sortColumn || "start_date";
+              const existingVal = existing[sortCol];
+              const newVal = item[sortCol];
+              if (deduplication.keepStrategy === "latest" && newVal > existingVal) {
+                groupedMap.set(key, item);
+              } else if (deduplication.keepStrategy === "earliest" && newVal < existingVal) {
+                groupedMap.set(key, item);
+              }
+            }
+          });
+          resultData = Array.from(groupedMap.values());
+        }
+
+        console.log(`🔗 [추가탭 ${tabIndex}] 결과 데이터:`, resultData.length);
+        setTabsData((prev) => ({ ...prev, [tabIndex]: resultData }));
+      } catch (error) {
+        console.error(`추가탭 ${tabIndex} 데이터 로드 실패:`, error);
+        toast({
+          title: "데이터 로드 실패",
+          description: `탭 데이터를 불러올 수 없습니다.`,
+          variant: "destructive",
+        });
+      } finally {
+        setTabsLoading((prev) => ({ ...prev, [tabIndex]: false }));
+      }
+    },
+    [componentConfig.rightPanel?.additionalTabs, isDesignMode, toast],
+  );
+
   // 좌측 항목 선택 핸들러
   const handleLeftItemSelect = useCallback(
     (item: any) => {
       setSelectedLeftItem(item);
       setExpandedRightItems(new Set()); // 좌측 항목 변경 시 우측 확장 초기화
-      loadRightData(item);
+      setTabsData({}); // 모든 탭 데이터 초기화
+
+      // 현재 활성 탭에 따라 데이터 로드
+      if (activeTabIndex === 0) {
+        loadRightData(item);
+      } else {
+        loadTabData(activeTabIndex, item);
+      }
 
       // 🆕 modalDataStore에 선택된 좌측 항목 저장 (단일 선택)
       const leftTableName = componentConfig.leftPanel?.tableName;
@@ -1053,7 +1220,30 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
         });
       }
     },
-    [loadRightData, componentConfig.leftPanel?.tableName, isDesignMode],
+    [loadRightData, loadTabData, activeTabIndex, componentConfig.leftPanel?.tableName, isDesignMode],
+  );
+
+  // 🆕 탭 변경 핸들러
+  const handleTabChange = useCallback(
+    (newTabIndex: number) => {
+      setActiveTabIndex(newTabIndex);
+
+      // 선택된 좌측 항목이 있으면 해당 탭의 데이터 로드
+      if (selectedLeftItem) {
+        if (newTabIndex === 0) {
+          // 기본 탭: 우측 패널 데이터가 없으면 로드
+          if (!rightData || (Array.isArray(rightData) && rightData.length === 0)) {
+            loadRightData(selectedLeftItem);
+          }
+        } else {
+          // 추가 탭: 해당 탭 데이터가 없으면 로드
+          if (!tabsData[newTabIndex]) {
+            loadTabData(newTabIndex, selectedLeftItem);
+          }
+        }
+      }
+    },
+    [selectedLeftItem, rightData, tabsData, loadRightData, loadTabData],
   );
 
   // 우측 항목 확장/축소 토글
@@ -1449,14 +1639,19 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
 
   // 수정 버튼 핸들러
   const handleEditClick = useCallback(
-    (panel: "left" | "right", item: any) => {
+    async (panel: "left" | "right", item: any) => {
+      // 🆕 현재 활성 탭의 설정 가져오기
+      const currentTabConfig =
+        activeTabIndex === 0
+          ? componentConfig.rightPanel
+          : componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1];
       // 🆕 우측 패널 수정 버튼 설정 확인
-      if (panel === "right" && componentConfig.rightPanel?.editButton?.mode === "modal") {
-        const modalScreenId = componentConfig.rightPanel?.editButton?.modalScreenId;
+      if (panel === "right" && currentTabConfig?.editButton?.mode === "modal") {
+        const modalScreenId = currentTabConfig?.editButton?.modalScreenId;
 
         if (modalScreenId) {
           // 커스텀 모달 화면 열기
-          const rightTableName = componentConfig.rightPanel?.tableName || "";
+          const rightTableName = currentTabConfig?.tableName || "";
 
           console.log("✅ 수정 모달 열기:", {
             tableName: rightTableName,
@@ -1470,33 +1665,108 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
           });
 
           // 🆕 groupByColumns 추출
-          const groupByColumns = componentConfig.rightPanel?.editButton?.groupByColumns || [];
+          const groupByColumns = currentTabConfig?.editButton?.groupByColumns || [];
 
           console.log("🔧 [SplitPanel] 수정 버튼 클릭 - groupByColumns 확인:", {
             groupByColumns,
-            editButtonConfig: componentConfig.rightPanel?.editButton,
+            editButtonConfig: currentTabConfig?.editButton,
             hasGroupByColumns: groupByColumns.length > 0,
           });
 
+          // 🆕 groupByColumns 기준으로 모든 관련 레코드 조회 (API 직접 호출)
+          let allRelatedRecords = [item]; // 기본값: 현재 아이템만
+          
+          if (groupByColumns.length > 0) {
+            // groupByColumns 값으로 검색 조건 생성
+            const matchConditions: Record<string, any> = {};
+            groupByColumns.forEach((col: string) => {
+              if (item[col] !== undefined && item[col] !== null) {
+                matchConditions[col] = item[col];
+              }
+            });
+
+            console.log("🔍 [SplitPanel] 그룹 레코드 조회 시작:", {
+              테이블: rightTableName,
+              조건: matchConditions,
+            });
+
+            if (Object.keys(matchConditions).length > 0) {
+              // 🆕 deduplication 없이 원본 데이터 다시 조회 (API 직접 호출)
+              try {
+                const { entityJoinApi } = await import("@/lib/api/entityJoin");
+                
+                // 🔧 dataFilter로 정확 매칭 조건 생성 (search는 LIKE 검색이라 부정확)
+                const exactMatchFilters = Object.entries(matchConditions).map(([key, value]) => ({
+                  id: `exact-${key}`,
+                  columnName: key,
+                  operator: "equals",
+                  value: value,
+                  valueType: "text",
+                }));
+                
+                console.log("🔍 [SplitPanel] 정확 매칭 필터:", exactMatchFilters);
+                
+                const result = await entityJoinApi.getTableDataWithJoins(rightTableName, {
+                  // search 대신 dataFilter 사용 (정확 매칭)
+                  dataFilter: {
+                    enabled: true,
+                    matchType: "all",
+                    filters: exactMatchFilters,
+                  },
+                  enableEntityJoin: true,
+                  size: 1000,
+                  // 🔧 명시적으로 deduplication 비활성화 (모든 레코드 가져오기)
+                  deduplication: { enabled: false, groupByColumn: "", keepStrategy: "latest" },
+                });
+                
+                // 🔍 디버깅: API 응답 구조 확인
+                console.log("🔍 [SplitPanel] API 응답 전체:", result);
+                console.log("🔍 [SplitPanel] result.data:", result.data);
+                console.log("🔍 [SplitPanel] result 타입:", typeof result);
+                
+                // result 자체가 배열일 수도 있음 (entityJoinApi 응답 구조에 따라)
+                const dataArray = Array.isArray(result) ? result : (result.data || []);
+                
+                if (dataArray.length > 0) {
+                  allRelatedRecords = dataArray;
+                  console.log("✅ [SplitPanel] 그룹 레코드 조회 완료:", {
+                    조건: matchConditions,
+                    결과수: allRelatedRecords.length,
+                    레코드들: allRelatedRecords.map((r: any) => ({ id: r.id, supplier_item_code: r.supplier_item_code })),
+                  });
+                } else {
+                  console.warn("⚠️ [SplitPanel] 그룹 레코드 조회 결과 없음, 현재 아이템만 사용");
+                }
+              } catch (error) {
+                console.error("❌ [SplitPanel] 그룹 레코드 조회 실패:", error);
+                allRelatedRecords = [item];
+              }
+            } else {
+              console.warn("⚠️ [SplitPanel] groupByColumns 값이 없음, 현재 아이템만 사용");
+            }
+          }
+
           // 🔧 수정: URL 파라미터 대신 editData로 직접 전달
           // 이렇게 하면 테이블의 Primary Key가 무엇이든 상관없이 데이터가 정확히 전달됨
           window.dispatchEvent(
             new CustomEvent("openScreenModal", {
               detail: {
                 screenId: modalScreenId,
-                editData: item, // 전체 데이터를 직접 전달
-                ...(groupByColumns.length > 0 && {
-                  urlParams: {
+                editData: allRelatedRecords, // 🆕 모든 관련 레코드 전달 (배열)
+                urlParams: {
+                  mode: "edit", // 🆕 수정 모드 표시
+                  ...(groupByColumns.length > 0 && {
                     groupByColumns: JSON.stringify(groupByColumns),
-                  },
-                }),
+                  }),
+                },
               },
             }),
           );
 
           console.log("✅ [SplitPanel] openScreenModal 이벤트 발생 (editData 직접 전달):", {
             screenId: modalScreenId,
-            editData: item,
+            editData: allRelatedRecords,
+            recordCount: allRelatedRecords.length,
             groupByColumns: groupByColumns.length > 0 ? JSON.stringify(groupByColumns) : "없음",
           });
 
@@ -1510,7 +1780,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
       setEditModalFormData({ ...item });
       setShowEditModal(true);
     },
-    [componentConfig],
+    [componentConfig, activeTabIndex],
   );
 
   // 수정 모달 저장
@@ -1610,13 +1880,19 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
 
   // 삭제 확인
   const handleDeleteConfirm = useCallback(async () => {
+    // 🆕 현재 활성 탭의 설정 가져오기
+    const currentTabConfig =
+      activeTabIndex === 0
+        ? componentConfig.rightPanel
+        : componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1];
+
     // 우측 패널 삭제 시 중계 테이블 확인
     let tableName =
-      deleteModalPanel === "left" ? componentConfig.leftPanel?.tableName : componentConfig.rightPanel?.tableName;
+      deleteModalPanel === "left" ? componentConfig.leftPanel?.tableName : currentTabConfig?.tableName;
 
     // 우측 패널 + 중계 테이블 모드인 경우
-    if (deleteModalPanel === "right" && componentConfig.rightPanel?.addConfig?.targetTable) {
-      tableName = componentConfig.rightPanel.addConfig.targetTable;
+    if (deleteModalPanel === "right" && currentTabConfig?.addConfig?.targetTable) {
+      tableName = currentTabConfig.addConfig.targetTable;
       console.log("🔗 중계 테이블 모드: 삭제 대상 테이블 =", tableName);
     }
 
@@ -1746,7 +2022,12 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
             setRightData(null);
           }
         } else if (deleteModalPanel === "right" && selectedLeftItem) {
-          loadRightData(selectedLeftItem);
+          // 🆕 현재 활성 탭에 따라 새로고침
+          if (activeTabIndex === 0) {
+            loadRightData(selectedLeftItem);
+          } else {
+            loadTabData(activeTabIndex, selectedLeftItem);
+          }
         }
       } else {
         toast({
@@ -1770,7 +2051,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
         variant: "destructive",
       });
     }
-  }, [deleteModalPanel, componentConfig, deleteModalItem, toast, selectedLeftItem, loadLeftData, loadRightData]);
+  }, [deleteModalPanel, componentConfig, deleteModalItem, toast, selectedLeftItem, loadLeftData, loadRightData, activeTabIndex, loadTabData]);
 
   // 항목별 추가 버튼 핸들러 (좌측 항목의 + 버튼 - 하위 항목 추가)
   const handleItemAddClick = useCallback(
@@ -2591,6 +2872,34 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
         className="flex flex-shrink-0 flex-col"
       >
         <Card className="flex flex-col border-0 shadow-none" style={{ height: "100%" }}>
+          {/* 🆕 탭 바 (추가 탭이 있을 때만 표시) */}
+          {(componentConfig.rightPanel?.additionalTabs?.length || 0) > 0 && (
+            <div className="flex-shrink-0 border-b">
+              <Tabs
+                value={String(activeTabIndex)}
+                onValueChange={(value) => handleTabChange(Number(value))}
+                className="w-full"
+              >
+                <TabsList className="h-9 w-full justify-start rounded-none border-b-0 bg-transparent p-0 px-2">
+                  <TabsTrigger
+                    value="0"
+                    className="h-8 rounded-none border-b-2 border-transparent px-4 data-[state=active]:border-primary data-[state=active]:bg-transparent data-[state=active]:shadow-none"
+                  >
+                    {componentConfig.rightPanel?.title || "기본"}
+                  </TabsTrigger>
+                  {componentConfig.rightPanel?.additionalTabs?.map((tab, index) => (
+                    <TabsTrigger
+                      key={tab.tabId}
+                      value={String(index + 1)}
+                      className="h-8 rounded-none border-b-2 border-transparent px-4 data-[state=active]:border-primary data-[state=active]:bg-transparent data-[state=active]:shadow-none"
+                    >
+                      {tab.label || `탭 ${index + 1}`}
+                    </TabsTrigger>
+                  ))}
+                </TabsList>
+              </Tabs>
+            </div>
+          )}
           <CardHeader
             className="flex-shrink-0 border-b"
             style={{
@@ -2603,16 +2912,28 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
           >
             <div className="flex w-full items-center justify-between">
               <CardTitle className="text-base font-semibold">
-                {componentConfig.rightPanel?.title || "우측 패널"}
+                {activeTabIndex === 0
+                  ? componentConfig.rightPanel?.title || "우측 패널"
+                  : componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1]?.title ||
+                    componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1]?.label ||
+                    "우측 패널"}
               </CardTitle>
               {!isDesignMode && (
                 <div className="flex items-center gap-2">
-                  {componentConfig.rightPanel?.showAdd && (
-                    <Button size="sm" variant="outline" onClick={() => handleAddClick("right")}>
-                      <Plus className="mr-1 h-4 w-4" />
-                      추가
-                    </Button>
-                  )}
+                  {/* 현재 활성 탭에 따른 추가 버튼 */}
+                  {activeTabIndex === 0
+                    ? componentConfig.rightPanel?.showAdd && (
+                        <Button size="sm" variant="outline" onClick={() => handleAddClick("right")}>
+                          <Plus className="mr-1 h-4 w-4" />
+                          추가
+                        </Button>
+                      )
+                    : componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1]?.showAdd && (
+                        <Button size="sm" variant="outline" onClick={() => handleAddClick("right")}>
+                          <Plus className="mr-1 h-4 w-4" />
+                          추가
+                        </Button>
+                      )}
                   {/* 우측 패널 수정/삭제는 각 카드에서 처리 */}
                 </div>
               )}
@@ -2632,16 +2953,228 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
             </div>
           )}
           <CardContent className="flex-1 overflow-auto p-4">
-            {/* 우측 데이터 */}
-            {isLoadingRight ? (
-              // 로딩 중
-              <div className="flex h-full items-center justify-center">
-                <div className="text-center">
-                  <Loader2 className="text-primary mx-auto h-8 w-8 animate-spin" />
-                  <p className="text-muted-foreground mt-2 text-sm">데이터를 불러오는 중...</p>
-                </div>
-              </div>
-            ) : rightData ? (
+            {/* 🆕 추가 탭 데이터 렌더링 */}
+            {activeTabIndex > 0 ? (
+              // 추가 탭 컨텐츠
+              (() => {
+                const currentTabConfig = componentConfig.rightPanel?.additionalTabs?.[activeTabIndex - 1];
+                const currentTabData = tabsData[activeTabIndex] || [];
+                const isTabLoading = tabsLoading[activeTabIndex];
+
+                if (isTabLoading) {
+                  return (
+                    <div className="flex h-full items-center justify-center">
+                      <div className="text-center">
+                        <Loader2 className="text-primary mx-auto h-8 w-8 animate-spin" />
+                        <p className="text-muted-foreground mt-2 text-sm">데이터를 불러오는 중...</p>
+                      </div>
+                    </div>
+                  );
+                }
+
+                if (!selectedLeftItem) {
+                  return (
+                    <div className="flex h-full items-center justify-center">
+                      <p className="text-muted-foreground text-sm">좌측에서 항목을 선택하세요</p>
+                    </div>
+                  );
+                }
+
+                if (currentTabData.length === 0) {
+                  return (
+                    <div className="flex h-full items-center justify-center">
+                      <p className="text-muted-foreground text-sm">데이터가 없습니다</p>
+                    </div>
+                  );
+                }
+
+                // 탭 데이터 렌더링 (목록/테이블 모드)
+                const isTableMode = currentTabConfig?.displayMode === "table";
+
+                if (isTableMode) {
+                  // 테이블 모드
+                  const displayColumns = currentTabConfig?.columns || [];
+                  const columnsToShow =
+                    displayColumns.length > 0
+                      ? displayColumns.map((col) => ({
+                          ...col,
+                          label: col.label || col.name,
+                        }))
+                      : Object.keys(currentTabData[0] || {})
+                          .filter(shouldShowField)
+                          .slice(0, 8)
+                          .map((key) => ({ name: key, label: key }));
+
+                  return (
+                    <div className="overflow-auto rounded-lg border">
+                      <table className="w-full text-sm">
+                        <thead className="bg-muted/50 sticky top-0">
+                          <tr>
+                            {columnsToShow.map((col: any) => (
+                              <th
+                                key={col.name}
+                                className="px-3 py-2 text-left font-medium"
+                                style={{ width: col.width ? `${col.width}px` : "auto" }}
+                              >
+                                {col.label}
+                              </th>
+                            ))}
+                            {(currentTabConfig?.showEdit || currentTabConfig?.showDelete) && (
+                              <th className="w-20 px-3 py-2 text-center font-medium">작업</th>
+                            )}
+                          </tr>
+                        </thead>
+                        <tbody>
+                          {currentTabData.map((item: any, idx: number) => (
+                            <tr key={item.id || idx} className="hover:bg-muted/30 border-t">
+                              {columnsToShow.map((col: any) => (
+                                <td key={col.name} className="px-3 py-2">
+                                  {formatValue(item[col.name], col.format)}
+                                </td>
+                              ))}
+                              {(currentTabConfig?.showEdit || currentTabConfig?.showDelete) && (
+                                <td className="px-3 py-2 text-center">
+                                  <div className="flex items-center justify-center gap-1">
+                                    {currentTabConfig?.showEdit && (
+                                      <Button
+                                        variant="ghost"
+                                        size="sm"
+                                        className="h-7 w-7 p-0"
+                                        onClick={() => handleEditClick("right", item)}
+                                      >
+                                        <Pencil className="h-3.5 w-3.5" />
+                                      </Button>
+                                    )}
+                                    {currentTabConfig?.showDelete && (
+                                      <Button
+                                        variant="ghost"
+                                        size="sm"
+                                        className="h-7 w-7 p-0 text-red-500 hover:text-red-600"
+                                        onClick={() => handleDeleteClick("right", item)}
+                                      >
+                                        <Trash2 className="h-3.5 w-3.5" />
+                                      </Button>
+                                    )}
+                                  </div>
+                                </td>
+                              )}
+                            </tr>
+                          ))}
+                        </tbody>
+                      </table>
+                    </div>
+                  );
+                } else {
+                  // 목록 (카드) 모드
+                  const displayColumns = currentTabConfig?.columns || [];
+                  const summaryCount = currentTabConfig?.summaryColumnCount ?? 3;
+                  const showLabel = currentTabConfig?.summaryShowLabel ?? true;
+
+                  return (
+                    <div className="space-y-2">
+                      {currentTabData.map((item: any, idx: number) => {
+                        const itemId = item.id || idx;
+                        const isExpanded = expandedRightItems.has(itemId);
+
+                        // 표시할 컬럼 결정
+                        const columnsToShow =
+                          displayColumns.length > 0
+                            ? displayColumns
+                            : Object.keys(item)
+                                .filter(shouldShowField)
+                                .slice(0, 8)
+                                .map((key) => ({ name: key, label: key }));
+
+                        const summaryColumns = columnsToShow.slice(0, summaryCount);
+                        const detailColumns = columnsToShow.slice(summaryCount);
+
+                        return (
+                          <div key={itemId} className="rounded-lg border bg-white p-3">
+                            <div
+                              className="flex cursor-pointer items-start justify-between"
+                              onClick={() => toggleRightItemExpansion(itemId)}
+                            >
+                              <div className="flex-1">
+                                <div className="flex flex-wrap gap-x-4 gap-y-1">
+                                  {summaryColumns.map((col: any) => (
+                                    <div key={col.name} className="text-sm">
+                                      {showLabel && (
+                                        <span className="text-muted-foreground mr-1">{col.label}:</span>
+                                      )}
+                                      <span className={col.bold ? "font-semibold" : ""}>
+                                        {formatValue(item[col.name], col.format)}
+                                      </span>
+                                    </div>
+                                  ))}
+                                </div>
+                              </div>
+                              <div className="ml-2 flex items-center gap-1">
+                                {currentTabConfig?.showEdit && (
+                                  <Button
+                                    variant="ghost"
+                                    size="sm"
+                                    className="h-7 w-7 p-0"
+                                    onClick={(e) => {
+                                      e.stopPropagation();
+                                      handleEditClick("right", item);
+                                    }}
+                                  >
+                                    <Pencil className="h-3.5 w-3.5" />
+                                  </Button>
+                                )}
+                                {currentTabConfig?.showDelete && (
+                                  <Button
+                                    variant="ghost"
+                                    size="sm"
+                                    className="h-7 w-7 p-0 text-red-500 hover:text-red-600"
+                                    onClick={(e) => {
+                                      e.stopPropagation();
+                                      handleDeleteClick("right", item);
+                                    }}
+                                  >
+                                    <Trash2 className="h-3.5 w-3.5" />
+                                  </Button>
+                                )}
+                                {detailColumns.length > 0 && (
+                                  isExpanded ? (
+                                    <ChevronUp className="h-4 w-4 text-gray-400" />
+                                  ) : (
+                                    <ChevronDown className="h-4 w-4 text-gray-400" />
+                                  )
+                                )}
+                              </div>
+                            </div>
+                            {isExpanded && detailColumns.length > 0 && (
+                              <div className="mt-2 border-t pt-2">
+                                <div className="grid grid-cols-2 gap-2">
+                                  {detailColumns.map((col: any) => (
+                                    <div key={col.name} className="text-sm">
+                                      <span className="text-muted-foreground">{col.label}:</span>
+                                      <span className="ml-1">{formatValue(item[col.name], col.format)}</span>
+                                    </div>
+                                  ))}
+                                </div>
+                              </div>
+                            )}
+                          </div>
+                        );
+                      })}
+                    </div>
+                  );
+                }
+              })()
+            ) : (
+              /* 기본 탭 (우측 패널) 데이터 */
+              <>
+                {isLoadingRight ? (
+                  // 로딩 중
+                  <div className="flex h-full items-center justify-center">
+                    <div className="text-center">
+                      <Loader2 className="text-primary mx-auto h-8 w-8 animate-spin" />
+                      <p className="text-muted-foreground mt-2 text-sm">데이터를 불러오는 중...</p>
+                    </div>
+                  </div>
+                ) : rightData ? (
               // 실제 데이터 표시
               Array.isArray(rightData) ? (
                 // 조인 모드: 여러 데이터를 테이블/리스트로 표시
@@ -3084,6 +3617,8 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                 </div>
               </div>
             )}
+              </>
+            )}
           </CardContent>
         </Card>
       </div>
diff --git a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
index 97f7b56a..9810388f 100644
--- a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
+++ b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutConfigPanel.tsx
@@ -11,10 +11,11 @@ import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, Command
 import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
 import { Button } from "@/components/ui/button";
 // Accordion 제거 - 단순 섹션으로 변경
-import { Check, ChevronsUpDown, ArrowRight, Plus, X, ArrowUp, ArrowDown } from "lucide-react";
+import { Check, ChevronsUpDown, ArrowRight, Plus, X, ArrowUp, ArrowDown, Trash2, GripVertical } from "lucide-react";
 import { cn } from "@/lib/utils";
-import { SplitPanelLayoutConfig } from "./types";
+import { SplitPanelLayoutConfig, AdditionalTabConfig } from "./types";
 import { TableInfo, ColumnInfo } from "@/types/screen";
+import { Accordion, AccordionContent, AccordionItem, AccordionTrigger } from "@/components/ui/accordion";
 import { tableTypeApi } from "@/lib/api/screen";
 import { DataFilterConfigPanel } from "@/components/screen/config-panels/DataFilterConfigPanel";
 
@@ -189,6 +190,848 @@ const ScreenSelector: React.FC<{
   );
 };
 
+/**
+ * 추가 탭 설정 패널 (우측 패널과 동일한 구조)
+ */
+interface AdditionalTabConfigPanelProps {
+  tab: AdditionalTabConfig;
+  tabIndex: number;
+  config: SplitPanelLayoutConfig;
+  updateRightPanel: (updates: Partial<SplitPanelLayoutConfig["rightPanel"]>) => void;
+  availableRightTables: TableInfo[];
+  leftTableColumns: ColumnInfo[];
+  menuObjid?: number;
+  // 공유 컬럼 로드 상태
+  loadedTableColumns: Record<string, ColumnInfo[]>;
+  loadTableColumns: (tableName: string) => Promise<void>;
+  loadingColumns: Record<string, boolean>;
+}
+
+const AdditionalTabConfigPanel: React.FC<AdditionalTabConfigPanelProps> = ({
+  tab,
+  tabIndex,
+  config,
+  updateRightPanel,
+  availableRightTables,
+  leftTableColumns,
+  menuObjid,
+  loadedTableColumns,
+  loadTableColumns,
+  loadingColumns,
+}) => {
+  // 탭 테이블 변경 시 컬럼 로드
+  useEffect(() => {
+    if (tab.tableName && !loadedTableColumns[tab.tableName] && !loadingColumns[tab.tableName]) {
+      loadTableColumns(tab.tableName);
+    }
+  }, [tab.tableName, loadedTableColumns, loadingColumns, loadTableColumns]);
+
+  // 현재 탭의 컬럼 목록
+  const tabColumns = useMemo(() => {
+    return tab.tableName ? loadedTableColumns[tab.tableName] || [] : [];
+  }, [tab.tableName, loadedTableColumns]);
+
+  // 로딩 상태
+  const loadingTabColumns = tab.tableName ? loadingColumns[tab.tableName] || false : false;
+
+  // 탭 업데이트 헬퍼
+  const updateTab = (updates: Partial<AdditionalTabConfig>) => {
+    const newTabs = [...(config.rightPanel?.additionalTabs || [])];
+    newTabs[tabIndex] = { ...tab, ...updates };
+    updateRightPanel({ additionalTabs: newTabs });
+  };
+
+  return (
+    <AccordionItem
+      key={tab.tabId}
+      value={tab.tabId}
+      className="rounded-lg border bg-gray-50"
+    >
+      <AccordionTrigger className="px-3 py-2 hover:no-underline">
+        <div className="flex flex-1 items-center gap-2">
+          <GripVertical className="h-4 w-4 text-gray-400" />
+          <span className="text-sm font-medium">
+            {tab.label || `탭 ${tabIndex + 1}`}
+          </span>
+          {tab.tableName && (
+            <span className="text-xs text-gray-500">({tab.tableName})</span>
+          )}
+        </div>
+      </AccordionTrigger>
+      <AccordionContent className="px-3 pb-3">
+        <div className="space-y-4">
+          {/* ===== 1. 기본 정보 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">기본 정보</Label>
+            <div className="grid grid-cols-2 gap-3">
+              <div className="space-y-1">
+                <Label className="text-xs">탭 라벨</Label>
+                <Input
+                  value={tab.label}
+                  onChange={(e) => updateTab({ label: e.target.value })}
+                  placeholder="탭 이름"
+                  className="h-8 text-xs"
+                />
+              </div>
+              <div className="space-y-1">
+                <Label className="text-xs">패널 제목</Label>
+                <Input
+                  value={tab.title}
+                  onChange={(e) => updateTab({ title: e.target.value })}
+                  placeholder="패널 제목"
+                  className="h-8 text-xs"
+                />
+              </div>
+            </div>
+            <div className="space-y-1">
+              <Label className="text-xs">패널 헤더 높이</Label>
+              <Input
+                type="number"
+                value={tab.panelHeaderHeight ?? 48}
+                onChange={(e) => updateTab({ panelHeaderHeight: parseInt(e.target.value) || 48 })}
+                placeholder="48"
+                className="h-8 w-24 text-xs"
+              />
+            </div>
+          </div>
+
+          {/* ===== 2. 테이블 선택 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">테이블 설정</Label>
+            <div className="space-y-1">
+              <Label className="text-xs">테이블 선택</Label>
+              <Popover>
+                <PopoverTrigger asChild>
+                  <Button
+                    variant="outline"
+                    role="combobox"
+                    className="h-8 w-full justify-between text-xs"
+                  >
+                    {tab.tableName || "테이블을 선택하세요"}
+                    <ChevronsUpDown className="ml-2 h-3 w-3 shrink-0 opacity-50" />
+                  </Button>
+                </PopoverTrigger>
+                <PopoverContent className="w-full p-0">
+                  <Command>
+                    <CommandInput placeholder="테이블 검색..." className="text-xs" />
+                    <CommandEmpty>테이블을 찾을 수 없습니다.</CommandEmpty>
+                    <CommandGroup className="max-h-[200px] overflow-auto">
+                      {availableRightTables.map((table) => (
+                        <CommandItem
+                          key={table.tableName}
+                          value={`${table.displayName || ""} ${table.tableName}`}
+                          onSelect={() => updateTab({ tableName: table.tableName, columns: [] })}
+                        >
+                          <Check
+                            className={cn(
+                              "mr-2 h-4 w-4",
+                              tab.tableName === table.tableName ? "opacity-100" : "opacity-0"
+                            )}
+                          />
+                          {table.displayName || table.tableName}
+                        </CommandItem>
+                      ))}
+                    </CommandGroup>
+                  </Command>
+                </PopoverContent>
+              </Popover>
+            </div>
+          </div>
+
+          {/* ===== 3. 표시 모드 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">표시 설정</Label>
+            <div className="space-y-1">
+              <Label className="text-xs">표시 모드</Label>
+              <Select
+                value={tab.displayMode || "list"}
+                onValueChange={(value: "list" | "table") => updateTab({ displayMode: value })}
+              >
+                <SelectTrigger className="h-8 text-xs">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="list">목록 (카드)</SelectItem>
+                  <SelectItem value="table">테이블</SelectItem>
+                </SelectContent>
+              </Select>
+            </div>
+
+            {/* 요약 설정 (목록 모드) */}
+            {tab.displayMode === "list" && (
+              <div className="grid grid-cols-2 gap-3">
+                <div className="space-y-1">
+                  <Label className="text-xs">요약 컬럼 수</Label>
+                  <Input
+                    type="number"
+                    value={tab.summaryColumnCount ?? 3}
+                    onChange={(e) => updateTab({ summaryColumnCount: parseInt(e.target.value) || 3 })}
+                    min={1}
+                    max={10}
+                    className="h-8 text-xs"
+                  />
+                </div>
+                <div className="flex items-center gap-2 pt-5">
+                  <Checkbox
+                    id={`tab-${tabIndex}-summary-label`}
+                    checked={tab.summaryShowLabel ?? true}
+                    onCheckedChange={(checked) => updateTab({ summaryShowLabel: !!checked })}
+                  />
+                  <label htmlFor={`tab-${tabIndex}-summary-label`} className="text-xs">라벨 표시</label>
+                </div>
+              </div>
+            )}
+          </div>
+
+          {/* ===== 4. 컬럼 매핑 (조인 키) ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">컬럼 매핑 (조인 키)</Label>
+            <p className="text-[10px] text-gray-500">
+              좌측 패널 선택 시 관련 데이터만 표시합니다
+            </p>
+            <div className="mt-2 grid grid-cols-2 gap-2">
+              <div className="space-y-1">
+                <Label className="text-[10px]">좌측 컬럼</Label>
+                <Select
+                  value={tab.relation?.keys?.[0]?.leftColumn || tab.relation?.leftColumn || ""}
+                  onValueChange={(value) => {
+                    updateTab({
+                      relation: {
+                        ...tab.relation,
+                        type: "join",
+                        keys: [{ leftColumn: value, rightColumn: tab.relation?.keys?.[0]?.rightColumn || "" }],
+                      },
+                    });
+                  }}
+                >
+                  <SelectTrigger className="h-7 text-xs">
+                    <SelectValue placeholder="선택" />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {leftTableColumns.map((col) => (
+                      <SelectItem key={col.columnName} value={col.columnName}>
+                        {col.columnLabel || col.columnName}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+              <div className="space-y-1">
+                <Label className="text-[10px]">우측 컬럼</Label>
+                <Select
+                  value={tab.relation?.keys?.[0]?.rightColumn || tab.relation?.foreignKey || ""}
+                  onValueChange={(value) => {
+                    updateTab({
+                      relation: {
+                        ...tab.relation,
+                        type: "join",
+                        keys: [{ leftColumn: tab.relation?.keys?.[0]?.leftColumn || "", rightColumn: value }],
+                      },
+                    });
+                  }}
+                >
+                  <SelectTrigger className="h-7 text-xs">
+                    <SelectValue placeholder="선택" />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {tabColumns.map((col) => (
+                      <SelectItem key={col.columnName} value={col.columnName}>
+                        {col.columnLabel || col.columnName}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+          </div>
+
+          {/* ===== 5. 기능 버튼 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">기능 버튼</Label>
+            <div className="grid grid-cols-4 gap-2">
+              <div className="flex items-center gap-1">
+                <Checkbox
+                  id={`tab-${tabIndex}-search`}
+                  checked={tab.showSearch}
+                  onCheckedChange={(checked) => updateTab({ showSearch: !!checked })}
+                />
+                <label htmlFor={`tab-${tabIndex}-search`} className="text-xs">검색</label>
+              </div>
+              <div className="flex items-center gap-1">
+                <Checkbox
+                  id={`tab-${tabIndex}-add`}
+                  checked={tab.showAdd}
+                  onCheckedChange={(checked) => updateTab({ showAdd: !!checked })}
+                />
+                <label htmlFor={`tab-${tabIndex}-add`} className="text-xs">추가</label>
+              </div>
+              <div className="flex items-center gap-1">
+                <Checkbox
+                  id={`tab-${tabIndex}-edit`}
+                  checked={tab.showEdit}
+                  onCheckedChange={(checked) => updateTab({ showEdit: !!checked })}
+                />
+                <label htmlFor={`tab-${tabIndex}-edit`} className="text-xs">수정</label>
+              </div>
+              <div className="flex items-center gap-1">
+                <Checkbox
+                  id={`tab-${tabIndex}-delete`}
+                  checked={tab.showDelete}
+                  onCheckedChange={(checked) => updateTab({ showDelete: !!checked })}
+                />
+                <label htmlFor={`tab-${tabIndex}-delete`} className="text-xs">삭제</label>
+              </div>
+            </div>
+          </div>
+
+          {/* ===== 6. 표시 컬럼 설정 ===== */}
+          <div className="space-y-3 rounded-lg border border-green-200 bg-green-50 p-3">
+            <div className="flex items-center justify-between">
+              <Label className="text-xs font-semibold text-green-700">표시할 컬럼 선택</Label>
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={() => {
+                  const currentColumns = tab.columns || [];
+                  const newColumns = [...currentColumns, { name: "", label: "", width: 100 }];
+                  updateTab({ columns: newColumns });
+                }}
+                className="h-7 text-xs"
+                disabled={!tab.tableName || loadingTabColumns}
+              >
+                <Plus className="mr-1 h-3 w-3" />
+                컬럼 추가
+              </Button>
+            </div>
+            <p className="text-[10px] text-gray-600">
+              표시할 컬럼을 선택하세요. 선택하지 않으면 모든 컬럼이 표시됩니다.
+            </p>
+
+            {/* 테이블 미선택 상태 */}
+            {!tab.tableName && (
+              <div className="rounded-md border border-dashed border-gray-300 bg-white p-3 text-center">
+                <p className="text-xs text-gray-500">먼저 테이블을 선택하세요</p>
+              </div>
+            )}
+
+            {/* 테이블 선택됨 - 컬럼 목록 */}
+            {tab.tableName && (
+              <div className="space-y-2">
+                {/* 로딩 상태 */}
+                {loadingTabColumns && (
+                  <div className="rounded-md border border-dashed border-gray-300 bg-white p-3 text-center">
+                    <p className="text-xs text-gray-500">컬럼을 불러오는 중...</p>
+                  </div>
+                )}
+
+                {/* 설정된 컬럼이 없을 때 */}
+                {!loadingTabColumns && (tab.columns || []).length === 0 && (
+                  <div className="rounded-md border border-dashed border-gray-300 bg-white p-3 text-center">
+                    <p className="text-xs text-gray-500">설정된 컬럼이 없습니다</p>
+                    <p className="mt-1 text-[10px] text-gray-400">컬럼을 추가하지 않으면 모든 컬럼이 표시됩니다</p>
+                  </div>
+                )}
+
+                {/* 설정된 컬럼 목록 */}
+                {!loadingTabColumns && (tab.columns || []).length > 0 && (
+                  (tab.columns || []).map((col, colIndex) => (
+                    <div key={colIndex} className="space-y-2 rounded-md border bg-white p-3">
+                      {/* 상단: 순서 변경 + 삭제 버튼 */}
+                      <div className="flex items-center justify-between">
+                        <div className="flex items-center gap-1">
+                          <Button
+                            size="sm"
+                            variant="ghost"
+                            onClick={() => {
+                              if (colIndex === 0) return;
+                              const newColumns = [...(tab.columns || [])];
+                              [newColumns[colIndex - 1], newColumns[colIndex]] = [newColumns[colIndex], newColumns[colIndex - 1]];
+                              updateTab({ columns: newColumns });
+                            }}
+                            disabled={colIndex === 0}
+                            className="h-6 w-6 p-0"
+                          >
+                            <ArrowUp className="h-3 w-3" />
+                          </Button>
+                          <Button
+                            size="sm"
+                            variant="ghost"
+                            onClick={() => {
+                              const columns = tab.columns || [];
+                              if (colIndex === columns.length - 1) return;
+                              const newColumns = [...columns];
+                              [newColumns[colIndex], newColumns[colIndex + 1]] = [newColumns[colIndex + 1], newColumns[colIndex]];
+                              updateTab({ columns: newColumns });
+                            }}
+                            disabled={colIndex === (tab.columns || []).length - 1}
+                            className="h-6 w-6 p-0"
+                          >
+                            <ArrowDown className="h-3 w-3" />
+                          </Button>
+                          <span className="text-[10px] text-gray-400">#{colIndex + 1}</span>
+                        </div>
+                        <Button
+                          size="sm"
+                          variant="ghost"
+                          onClick={() => {
+                            const newColumns = (tab.columns || []).filter((_, i) => i !== colIndex);
+                            updateTab({ columns: newColumns });
+                          }}
+                          className="h-6 w-6 p-0 text-red-500 hover:bg-red-50 hover:text-red-600"
+                        >
+                          <X className="h-3 w-3" />
+                        </Button>
+                      </div>
+
+                      {/* 컬럼 선택 */}
+                      <div className="space-y-1">
+                        <Label className="text-[10px] text-gray-500">컬럼</Label>
+                        <Select
+                          value={col.name}
+                          onValueChange={(value) => {
+                            const selectedCol = tabColumns.find((c) => c.columnName === value);
+                            const newColumns = [...(tab.columns || [])];
+                            newColumns[colIndex] = {
+                              ...col,
+                              name: value,
+                              label: selectedCol?.columnLabel || value,
+                            };
+                            updateTab({ columns: newColumns });
+                          }}
+                        >
+                          <SelectTrigger className="h-8 text-xs">
+                            <SelectValue placeholder="컬럼을 선택하세요" />
+                          </SelectTrigger>
+                          <SelectContent>
+                            {tabColumns.map((column) => (
+                              <SelectItem key={column.columnName} value={column.columnName}>
+                                {column.columnLabel || column.columnName}
+                                <span className="ml-1 text-[10px] text-gray-400">({column.columnName})</span>
+                              </SelectItem>
+                            ))}
+                          </SelectContent>
+                        </Select>
+                      </div>
+
+                      {/* 라벨 + 너비 */}
+                      <div className="grid grid-cols-2 gap-2">
+                        <div className="space-y-1">
+                          <Label className="text-[10px] text-gray-500">라벨</Label>
+                          <Input
+                            value={col.label}
+                            onChange={(e) => {
+                              const newColumns = [...(tab.columns || [])];
+                              newColumns[colIndex] = { ...col, label: e.target.value };
+                              updateTab({ columns: newColumns });
+                            }}
+                            placeholder="표시 라벨"
+                            className="h-8 text-xs"
+                          />
+                        </div>
+                        <div className="space-y-1">
+                          <Label className="text-[10px] text-gray-500">너비 (px)</Label>
+                          <Input
+                            type="number"
+                            value={col.width || 100}
+                            onChange={(e) => {
+                              const newColumns = [...(tab.columns || [])];
+                              newColumns[colIndex] = { ...col, width: parseInt(e.target.value) || 100 };
+                              updateTab({ columns: newColumns });
+                            }}
+                            placeholder="100"
+                            className="h-8 text-xs"
+                          />
+                        </div>
+                      </div>
+                    </div>
+                  ))
+                )}
+              </div>
+            )}
+          </div>
+
+          {/* ===== 7. 추가 모달 컬럼 설정 (showAdd일 때) ===== */}
+          {tab.showAdd && (
+            <div className="space-y-3 rounded-lg border border-purple-200 bg-purple-50 p-3">
+              <div className="flex items-center justify-between">
+                <Label className="text-xs font-semibold text-purple-700">추가 모달 컬럼 설정</Label>
+                <Button
+                  size="sm"
+                  variant="outline"
+                  onClick={() => {
+                    const currentColumns = tab.addModalColumns || [];
+                    const newColumns = [...currentColumns, { name: "", label: "", required: false }];
+                    updateTab({ addModalColumns: newColumns });
+                  }}
+                  className="h-7 text-xs"
+                  disabled={!tab.tableName}
+                >
+                  <Plus className="mr-1 h-3 w-3" />
+                  컬럼 추가
+                </Button>
+              </div>
+
+              <div className="space-y-2">
+                {(tab.addModalColumns || []).length === 0 ? (
+                  <div className="rounded-md border border-dashed border-gray-300 bg-white p-3 text-center">
+                    <p className="text-xs text-gray-500">추가 모달에 표시할 컬럼을 설정하세요</p>
+                  </div>
+                ) : (
+                  (tab.addModalColumns || []).map((col, colIndex) => (
+                    <div key={colIndex} className="flex items-center gap-2 rounded-md border bg-white p-2">
+                      <Select
+                        value={col.name}
+                        onValueChange={(value) => {
+                          const selectedCol = tabColumns.find((c) => c.columnName === value);
+                          const newColumns = [...(tab.addModalColumns || [])];
+                          newColumns[colIndex] = {
+                            ...col,
+                            name: value,
+                            label: selectedCol?.columnLabel || value,
+                          };
+                          updateTab({ addModalColumns: newColumns });
+                        }}
+                      >
+                        <SelectTrigger className="h-8 flex-1 text-xs">
+                          <SelectValue placeholder="컬럼 선택" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          {tabColumns.map((column) => (
+                            <SelectItem key={column.columnName} value={column.columnName}>
+                              {column.columnLabel || column.columnName}
+                            </SelectItem>
+                          ))}
+                        </SelectContent>
+                      </Select>
+                      <Input
+                        value={col.label}
+                        onChange={(e) => {
+                          const newColumns = [...(tab.addModalColumns || [])];
+                          newColumns[colIndex] = { ...col, label: e.target.value };
+                          updateTab({ addModalColumns: newColumns });
+                        }}
+                        placeholder="라벨"
+                        className="h-8 w-24 text-xs"
+                      />
+                      <div className="flex items-center gap-1">
+                        <Checkbox
+                          checked={col.required}
+                          onCheckedChange={(checked) => {
+                            const newColumns = [...(tab.addModalColumns || [])];
+                            newColumns[colIndex] = { ...col, required: !!checked };
+                            updateTab({ addModalColumns: newColumns });
+                          }}
+                        />
+                        <span className="text-[10px]">필수</span>
+                      </div>
+                      <Button
+                        size="sm"
+                        variant="ghost"
+                        onClick={() => {
+                          const newColumns = (tab.addModalColumns || []).filter((_, i) => i !== colIndex);
+                          updateTab({ addModalColumns: newColumns });
+                        }}
+                        className="h-8 w-8 p-0 text-red-500"
+                      >
+                        <X className="h-3 w-3" />
+                      </Button>
+                    </div>
+                  ))
+                )}
+              </div>
+            </div>
+          )}
+
+          {/* ===== 8. 데이터 필터링 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <Label className="text-xs font-semibold text-blue-600">데이터 필터링</Label>
+            <DataFilterConfigPanel
+              tableName={tab.tableName}
+              columns={tabColumns}
+              config={tab.dataFilter}
+              onConfigChange={(dataFilter) => updateTab({ dataFilter })}
+              menuObjid={menuObjid}
+            />
+          </div>
+
+          {/* ===== 9. 중복 데이터 제거 ===== */}
+          <div className="space-y-3 rounded-lg border bg-white p-3">
+            <div className="flex items-center justify-between">
+              <Label className="text-xs font-semibold text-blue-600">중복 데이터 제거</Label>
+              <Switch
+                checked={tab.deduplication?.enabled ?? false}
+                onCheckedChange={(checked) => {
+                  if (checked) {
+                    updateTab({
+                      deduplication: {
+                        enabled: true,
+                        groupByColumn: "",
+                        keepStrategy: "latest",
+                        sortColumn: "start_date",
+                      },
+                    });
+                  } else {
+                    updateTab({ deduplication: undefined });
+                  }
+                }}
+              />
+            </div>
+            {tab.deduplication?.enabled && (
+              <div className="mt-2 space-y-2">
+                <div className="space-y-1">
+                  <Label className="text-[10px]">기준 컬럼</Label>
+                  <Select
+                    value={tab.deduplication?.groupByColumn || ""}
+                    onValueChange={(value) => {
+                      updateTab({
+                        deduplication: { ...tab.deduplication!, groupByColumn: value },
+                      });
+                    }}
+                  >
+                    <SelectTrigger className="h-7 text-xs">
+                      <SelectValue placeholder="컬럼 선택" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {tabColumns.map((col) => (
+                        <SelectItem key={col.columnName} value={col.columnName}>
+                          {col.columnLabel || col.columnName}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-[10px]">정렬 컬럼</Label>
+                  <Select
+                    value={tab.deduplication?.sortColumn || ""}
+                    onValueChange={(value) => {
+                      updateTab({
+                        deduplication: { ...tab.deduplication!, sortColumn: value },
+                      });
+                    }}
+                  >
+                    <SelectTrigger className="h-7 text-xs">
+                      <SelectValue placeholder="컬럼 선택" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {tabColumns.map((col) => (
+                        <SelectItem key={col.columnName} value={col.columnName}>
+                          {col.columnLabel || col.columnName}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-[10px]">유지 전략</Label>
+                  <Select
+                    value={tab.deduplication?.keepStrategy || "latest"}
+                    onValueChange={(value: "latest" | "earliest" | "base_price" | "current_date") => {
+                      updateTab({
+                        deduplication: { ...tab.deduplication!, keepStrategy: value },
+                      });
+                    }}
+                  >
+                    <SelectTrigger className="h-7 text-xs">
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="latest">최신</SelectItem>
+                      <SelectItem value="earliest">가장 오래된</SelectItem>
+                      <SelectItem value="current_date">현재 날짜 기준</SelectItem>
+                      <SelectItem value="base_price">기준가</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+              </div>
+            )}
+          </div>
+
+          {/* ===== 10. 수정 버튼 설정 ===== */}
+          {tab.showEdit && (
+            <div className="space-y-3 rounded-lg border border-blue-200 bg-blue-50 p-3">
+              <Label className="text-xs font-semibold text-blue-700">수정 버튼 설정</Label>
+              <div className="space-y-2">
+                <div className="space-y-1">
+                  <Label className="text-[10px]">수정 모드</Label>
+                  <Select
+                    value={tab.editButton?.mode || "auto"}
+                    onValueChange={(value: "auto" | "modal") => {
+                      updateTab({
+                        editButton: { ...tab.editButton, enabled: true, mode: value },
+                      });
+                    }}
+                  >
+                    <SelectTrigger className="h-7 text-xs">
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="auto">자동 (인라인)</SelectItem>
+                      <SelectItem value="modal">모달 화면</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+
+                {tab.editButton?.mode === "modal" && (
+                  <div className="space-y-1">
+                    <Label className="text-[10px]">수정 모달 화면</Label>
+                    <ScreenSelector
+                      value={tab.editButton?.modalScreenId}
+                      onChange={(screenId) => {
+                        updateTab({
+                          editButton: { ...tab.editButton, enabled: true, mode: "modal", modalScreenId: screenId },
+                        });
+                      }}
+                    />
+                  </div>
+                )}
+
+                <div className="grid grid-cols-2 gap-2">
+                  <div className="space-y-1">
+                    <Label className="text-[10px]">버튼 라벨</Label>
+                    <Input
+                      value={tab.editButton?.buttonLabel || ""}
+                      onChange={(e) => {
+                        updateTab({
+                          editButton: { ...tab.editButton, enabled: true, buttonLabel: e.target.value || undefined },
+                        });
+                      }}
+                      placeholder="수정"
+                      className="h-7 text-xs"
+                    />
+                  </div>
+                  <div className="space-y-1">
+                    <Label className="text-[10px]">버튼 스타일</Label>
+                    <Select
+                      value={tab.editButton?.buttonVariant || "ghost"}
+                      onValueChange={(value: "default" | "outline" | "ghost") => {
+                        updateTab({
+                          editButton: { ...tab.editButton, enabled: true, buttonVariant: value },
+                        });
+                      }}
+                    >
+                      <SelectTrigger className="h-7 text-xs">
+                        <SelectValue />
+                      </SelectTrigger>
+                      <SelectContent>
+                        <SelectItem value="ghost">Ghost (기본)</SelectItem>
+                        <SelectItem value="outline">Outline</SelectItem>
+                        <SelectItem value="default">Default</SelectItem>
+                      </SelectContent>
+                    </Select>
+                  </div>
+                </div>
+
+                {/* 그룹핑 기준 컬럼 */}
+                <div className="space-y-1">
+                  <Label className="text-[10px]">그룹핑 기준 컬럼</Label>
+                  <p className="text-[9px] text-gray-500">수정 시 같은 값을 가진 레코드를 함께 불러옵니다</p>
+                  <div className="max-h-[120px] space-y-1 overflow-y-auto rounded-md border bg-white p-2">
+                    {tabColumns.map((col) => (
+                      <div key={col.columnName} className="flex items-center gap-2">
+                        <Checkbox
+                          id={`tab-${tabIndex}-groupby-${col.columnName}`}
+                          checked={(tab.editButton?.groupByColumns || []).includes(col.columnName)}
+                          onCheckedChange={(checked) => {
+                            const current = tab.editButton?.groupByColumns || [];
+                            const newColumns = checked
+                              ? [...current, col.columnName]
+                              : current.filter((c) => c !== col.columnName);
+                            updateTab({
+                              editButton: { ...tab.editButton, enabled: true, groupByColumns: newColumns },
+                            });
+                          }}
+                        />
+                        <label htmlFor={`tab-${tabIndex}-groupby-${col.columnName}`} className="text-[10px]">
+                          {col.columnLabel || col.columnName}
+                        </label>
+                      </div>
+                    ))}
+                  </div>
+                </div>
+              </div>
+            </div>
+          )}
+
+          {/* ===== 11. 삭제 버튼 설정 ===== */}
+          {tab.showDelete && (
+            <div className="space-y-3 rounded-lg border border-red-200 bg-red-50 p-3">
+              <Label className="text-xs font-semibold text-red-700">삭제 버튼 설정</Label>
+              <div className="space-y-2">
+                <div className="grid grid-cols-2 gap-2">
+                  <div className="space-y-1">
+                    <Label className="text-[10px]">버튼 라벨</Label>
+                    <Input
+                      value={tab.deleteButton?.buttonLabel || ""}
+                      onChange={(e) => {
+                        updateTab({
+                          deleteButton: { ...tab.deleteButton, enabled: true, buttonLabel: e.target.value || undefined },
+                        });
+                      }}
+                      placeholder="삭제"
+                      className="h-7 text-xs"
+                    />
+                  </div>
+                  <div className="space-y-1">
+                    <Label className="text-[10px]">버튼 스타일</Label>
+                    <Select
+                      value={tab.deleteButton?.buttonVariant || "ghost"}
+                      onValueChange={(value: "default" | "outline" | "ghost" | "destructive") => {
+                        updateTab({
+                          deleteButton: { ...tab.deleteButton, enabled: true, buttonVariant: value },
+                        });
+                      }}
+                    >
+                      <SelectTrigger className="h-7 text-xs">
+                        <SelectValue />
+                      </SelectTrigger>
+                      <SelectContent>
+                        <SelectItem value="ghost">Ghost (기본)</SelectItem>
+                        <SelectItem value="outline">Outline</SelectItem>
+                        <SelectItem value="default">Default</SelectItem>
+                        <SelectItem value="destructive">Destructive (빨강)</SelectItem>
+                      </SelectContent>
+                    </Select>
+                  </div>
+                </div>
+                <div className="space-y-1">
+                  <Label className="text-[10px]">삭제 확인 메시지</Label>
+                  <Input
+                    value={tab.deleteButton?.confirmMessage || ""}
+                    onChange={(e) => {
+                      updateTab({
+                        deleteButton: { ...tab.deleteButton, enabled: true, confirmMessage: e.target.value || undefined },
+                      });
+                    }}
+                    placeholder="정말 삭제하시겠습니까?"
+                    className="h-7 text-xs"
+                  />
+                </div>
+              </div>
+            </div>
+          )}
+
+          {/* ===== 탭 삭제 버튼 ===== */}
+          <div className="flex justify-end border-t pt-2">
+            <Button
+              variant="ghost"
+              size="sm"
+              className="text-red-500 hover:bg-red-50 hover:text-red-600"
+              onClick={() => {
+                const newTabs = config.rightPanel?.additionalTabs?.filter((_, i) => i !== tabIndex) || [];
+                updateRightPanel({ additionalTabs: newTabs });
+              }}
+            >
+              <Trash2 className="mr-1 h-3 w-3" />
+              탭 삭제
+            </Button>
+          </div>
+        </div>
+      </AccordionContent>
+    </AccordionItem>
+  );
+};
+
 /**
  * SplitPanelLayout 설정 패널
  */
@@ -2854,6 +3697,72 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
         )}
       </div>
 
+      {/* ======================================== */}
+      {/* 추가 탭 설정 (우측 패널과 동일한 구조) */}
+      {/* ======================================== */}
+      <div className="mt-4 space-y-4 border-t pt-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <h3 className="text-sm font-semibold">추가 탭</h3>
+            <p className="text-muted-foreground text-xs">
+              우측 패널에 다른 테이블 데이터를 탭으로 추가합니다
+            </p>
+          </div>
+          <Button
+            variant="outline"
+            size="sm"
+            onClick={() => {
+              const newTab: AdditionalTabConfig = {
+                tabId: `tab_${Date.now()}`,
+                label: `탭 ${(config.rightPanel?.additionalTabs?.length || 0) + 1}`,
+                title: "",
+                tableName: "",
+                displayMode: "list",
+                showSearch: false,
+                showAdd: false,
+                showEdit: true,
+                showDelete: true,
+                summaryColumnCount: 3,
+                summaryShowLabel: true,
+              };
+              updateRightPanel({
+                additionalTabs: [...(config.rightPanel?.additionalTabs || []), newTab],
+              });
+            }}
+          >
+            <Plus className="mr-1 h-3 w-3" />
+            탭 추가
+          </Button>
+        </div>
+
+        {/* 추가된 탭 목록 */}
+        {(config.rightPanel?.additionalTabs?.length || 0) > 0 ? (
+          <Accordion type="multiple" className="space-y-2">
+            {config.rightPanel?.additionalTabs?.map((tab, tabIndex) => (
+              <AdditionalTabConfigPanel
+                key={tab.tabId}
+                tab={tab}
+                tabIndex={tabIndex}
+                config={config}
+                updateRightPanel={updateRightPanel}
+                availableRightTables={availableRightTables}
+                leftTableColumns={leftTableColumns}
+                menuObjid={menuObjid}
+                loadedTableColumns={loadedTableColumns}
+                loadTableColumns={loadTableColumns}
+                loadingColumns={loadingColumns}
+              />
+            ))}
+          </Accordion>
+        ) : (
+          <div className="rounded-lg border border-dashed p-4 text-center">
+            <p className="text-xs text-gray-500">
+              추가된 탭이 없습니다. [탭 추가] 버튼을 클릭하여 새 탭을 추가하세요.
+            </p>
+          </div>
+        )}
+      </div>
+
       {/* 레이아웃 설정 */}
       <div className="mt-4 space-y-4 border-t pt-4">
         <div className="space-y-2">
diff --git a/frontend/lib/registry/components/split-panel-layout/types.ts b/frontend/lib/registry/components/split-panel-layout/types.ts
index 0e9d6db9..17edc100 100644
--- a/frontend/lib/registry/components/split-panel-layout/types.ts
+++ b/frontend/lib/registry/components/split-panel-layout/types.ts
@@ -4,6 +4,105 @@
 
 import { DataFilterConfig } from "@/types/screen-management";
 
+/**
+ * 추가 탭 설정 (우측 패널과 동일한 구조 + tabId, label)
+ */
+export interface AdditionalTabConfig {
+  // 탭 고유 정보
+  tabId: string;
+  label: string;
+
+  // === 우측 패널과 동일한 설정 ===
+  title: string;
+  panelHeaderHeight?: number;
+  tableName?: string;
+  dataSource?: string;
+  displayMode?: "list" | "table";
+  showSearch?: boolean;
+  showAdd?: boolean;
+  showEdit?: boolean;
+  showDelete?: boolean;
+  summaryColumnCount?: number;
+  summaryShowLabel?: boolean;
+
+  columns?: Array<{
+    name: string;
+    label: string;
+    width?: number;
+    sortable?: boolean;
+    align?: "left" | "center" | "right";
+    bold?: boolean;
+    format?: {
+      type?: "number" | "currency" | "date" | "text";
+      thousandSeparator?: boolean;
+      decimalPlaces?: number;
+      prefix?: string;
+      suffix?: string;
+      dateFormat?: string;
+    };
+  }>;
+
+  addModalColumns?: Array<{
+    name: string;
+    label: string;
+    required?: boolean;
+  }>;
+
+  relation?: {
+    type?: "join" | "detail";
+    leftColumn?: string;
+    rightColumn?: string;
+    foreignKey?: string;
+    keys?: Array<{
+      leftColumn: string;
+      rightColumn: string;
+    }>;
+  };
+
+  addConfig?: {
+    targetTable?: string;
+    autoFillColumns?: Record<string, any>;
+    leftPanelColumn?: string;
+    targetColumn?: string;
+  };
+
+  tableConfig?: {
+    showCheckbox?: boolean;
+    showRowNumber?: boolean;
+    rowHeight?: number;
+    headerHeight?: number;
+    striped?: boolean;
+    bordered?: boolean;
+    hoverable?: boolean;
+    stickyHeader?: boolean;
+  };
+
+  dataFilter?: DataFilterConfig;
+
+  deduplication?: {
+    enabled: boolean;
+    groupByColumn: string;
+    keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
+    sortColumn?: string;
+  };
+
+  editButton?: {
+    enabled: boolean;
+    mode: "auto" | "modal";
+    modalScreenId?: number;
+    buttonLabel?: string;
+    buttonVariant?: "default" | "outline" | "ghost";
+    groupByColumns?: string[];
+  };
+
+  deleteButton?: {
+    enabled: boolean;
+    buttonLabel?: string;
+    buttonVariant?: "default" | "outline" | "ghost" | "destructive";
+    confirmMessage?: string;
+  };
+}
+
 export interface SplitPanelLayoutConfig {
   // 좌측 패널 설정
   leftPanel: {
@@ -165,6 +264,9 @@ export interface SplitPanelLayoutConfig {
       buttonVariant?: "default" | "outline" | "ghost" | "destructive"; // 버튼 스타일 (기본: "ghost")
       confirmMessage?: string; // 삭제 확인 메시지
     };
+
+    // 🆕 추가 탭 설정 (멀티 테이블 탭)
+    additionalTabs?: AdditionalTabConfig[];
   };
 
   // 레이아웃 설정
diff --git a/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2ConfigPanel.tsx b/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2ConfigPanel.tsx
index 8ff83b6f..cd93a3b5 100644
--- a/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2ConfigPanel.tsx
+++ b/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2ConfigPanel.tsx
@@ -87,6 +87,10 @@ export const SplitPanelLayout2ConfigPanel: React.FC<SplitPanelLayout2ConfigPanel
   const [rightTableOpen, setRightTableOpen] = useState(false);
   const [leftModalOpen, setLeftModalOpen] = useState(false);
   const [rightModalOpen, setRightModalOpen] = useState(false);
+  
+  // 개별 수정 모달 화면 선택 Popover 상태
+  const [leftEditModalOpen, setLeftEditModalOpen] = useState(false);
+  const [rightEditModalOpen, setRightEditModalOpen] = useState(false);
 
   // 컬럼 세부설정 모달 상태 (기존 - 하위 호환성)
   const [columnConfigModalOpen, setColumnConfigModalOpen] = useState(false);
@@ -1004,6 +1008,19 @@ export const SplitPanelLayout2ConfigPanel: React.FC<SplitPanelLayout2ConfigPanel
                   onCheckedChange={(checked) => updateConfig("leftPanel.showEditButton", checked)}
                 />
               </div>
+              {/* 수정 버튼이 켜져 있을 때 모달 화면 선택 */}
+              {config.leftPanel?.showEditButton && (
+                <div className="ml-4 mt-1">
+                  <Label className="text-xs">수정 모달 화면</Label>
+                  <ScreenSelect
+                    value={config.leftPanel?.editModalScreenId}
+                    onValueChange={(value) => updateConfig("leftPanel.editModalScreenId", value)}
+                    placeholder="수정 모달 화면 선택"
+                    open={leftEditModalOpen}
+                    onOpenChange={setLeftEditModalOpen}
+                  />
+                </div>
+              )}
               <div className="flex items-center justify-between">
                 <Label className="text-xs">삭제 버튼</Label>
                 <Switch
@@ -1322,6 +1339,19 @@ export const SplitPanelLayout2ConfigPanel: React.FC<SplitPanelLayout2ConfigPanel
                   onCheckedChange={(checked) => updateConfig("rightPanel.showEditButton", checked)}
                 />
               </div>
+              {/* 수정 버튼이 켜져 있을 때 모달 화면 선택 */}
+              {config.rightPanel?.showEditButton && (
+                <div className="ml-4 mt-1">
+                  <Label className="text-xs">수정 모달 화면</Label>
+                  <ScreenSelect
+                    value={config.rightPanel?.editModalScreenId}
+                    onValueChange={(value) => updateConfig("rightPanel.editModalScreenId", value)}
+                    placeholder="수정 모달 화면 선택"
+                    open={rightEditModalOpen}
+                    onOpenChange={setRightEditModalOpen}
+                  />
+                </div>
+              )}
               <div className="flex items-center justify-between">
                 <Label className="text-xs">삭제 버튼</Label>
                 <Switch