diff --git a/A00_Common/spreadsheet/spreadsheet_actions.ts b/A00_Common/spreadsheet/spreadsheet_actions.ts
new file mode 100644
index 00000000..4c8fa631
--- /dev/null
+++ b/A00_Common/spreadsheet/spreadsheet_actions.ts
@@ -0,0 +1,139 @@
+/* =============================================================================
+ * spreadsheet_actions.ts  (주인 D)
+ * 단축키 표(sub1 `spreadsheet_shortcuts.ts`) 「안됨」 잇기 + 3차 부품 메뉴 자리([데이터 ▾] 에 붙임).
+ *   Ctrl+Shift++ · Ctrl+- 칸 넣기 · 지우기(행 · 열 통째면 바로 · 아니면 sub1 창) · F5 · Ctrl+G 이동 ·
+ *   Ctrl+9/0 숨김 · Ctrl+Shift+9/0 풀기 · Ctrl+B/I/U/5 글꼴 뒤집기 · Ctrl+Shift+& 바깥 테두리 ·
+ *   Ctrl+Shift+_ 테두리 없앰 · Ctrl+; 오늘 날짜 · Ctrl+PageDown/PageUp 시트 · Shift+F11 새 시트 ·
+ *   Shift+Alt+→/← 행 · 열 묶기 · 풀기(C 윤곽 +/- 가 접음).
+ * 여기는 키 · 메뉴 → 이름만 · 몸통은 `spreadsheet_actions_run.ts`(늦게 — 크기 예산).
+ * ========================================================================== */
+
+import type { MapContextMenuItem } from "@ui/ui_template_context_menu";
+import type { SpreadsheetContext } from "./spreadsheet_view_types";
+
+const TEXT = {
+  goTo: "이동…(F5)",
+  freeze: "틀 고정",
+  freezeRow: "첫 행 고정",
+  freezeCol: "첫 열 고정",
+  freezeAt: "지금 칸 기준 고정",
+  unfreeze: "틀 고정 풀기",
+  insert: "칸 넣기…(Ctrl+Shift++)",
+  remove: "칸 지우기…(Ctrl+-)",
+  split: "텍스트 나누기…",
+  dedupe: "중복된 항목 제거…",
+  series: "연속 데이터 채우기…",
+  group: "묶기(Shift+Alt+→)",
+  ungroup: "묶음 풀기(Shift+Alt+←)",
+  outline: "윤곽",
+};
+
+export type Act =
+  | "goTo"
+  | "insert"
+  | "remove"
+  | "hideRows"
+  | "hideCols"
+  | "showRows"
+  | "showCols"
+  | "group"
+  | "ungroup"
+  | "outline"
+  | "clearBorders"
+  | "today"
+  | "next"
+  | "prev"
+  | "newSheet"
+  | "freezeRow"
+  | "freezeCol"
+  | "freezeAt"
+  | "unfreeze"
+  | "split"
+  | "dedupe"
+  | "series"
+  | `flip:${"굵게" | "기울임" | "밑줄" | "취소선"}`;
+
+/** Ctrl+글자(e.code) → 이름 */
+const CTRL: Record<string, Act> = {
+  KeyB: "flip:굵게",
+  KeyI: "flip:기울임",
+  KeyU: "flip:밑줄",
+  Digit5: "flip:취소선",
+  KeyG: "goTo",
+  Minus: "remove",
+  NumpadSubtract: "remove",
+  NumpadAdd: "insert",
+  Digit9: "hideRows",
+  Digit0: "hideCols",
+  Semicolon: "today", // ponytail: 시각(Ctrl+Shift+;)은 numfmt 시간 형식이 오면
+  PageDown: "next",
+  PageUp: "prev",
+};
+/** Ctrl+Shift+글자 → 이름 */
+const CTRL_SHIFT: Record<string, Act> = {
+  Equal: "insert",
+  NumpadAdd: "insert",
+  Minus: "clearBorders",
+  Digit9: "showRows",
+  Digit0: "showCols",
+  Digit7: "outline",
+  PageDown: "next",
+  PageUp: "prev",
+};
+
+/** body 에 뜬 창(.ui-confirm)이 다 닫히면 초점을 격자로 — 창을 연 바로 뒤에 부름 */
+export function watchClose(back: () => void): void {
+  const w = new MutationObserver(() => {
+    if (document.querySelector("body > .ui-confirm, body > .ui-confirm__panel")) return;
+    w.disconnect();
+    back();
+  });
+  w.observe(document.body, { childList: true });
+}
+
+function pick(e: KeyboardEvent): Act | undefined {
+  const ctrl = e.ctrlKey || e.metaKey;
+  if (e.altKey)
+    return e.shiftKey && !ctrl
+      ? ({ ArrowRight: "group", ArrowLeft: "ungroup" } as Record<string, Act>)[e.key]
+      : undefined;
+  if (ctrl) return (e.shiftKey ? CTRL_SHIFT : CTRL)[e.code];
+  if (e.key === "F5" && !e.shiftKey) return "goTo";
+  if (e.key === "F11" && e.shiftKey) return "newSheet";
+}
+
+export interface Actions {
+  key(e: KeyboardEvent): boolean;
+  items: MapContextMenuItem[];
+}
+
+export function mountActions(ctx: SpreadsheetContext, back: () => void): Actions {
+  const go = (act: Act): void =>
+    void import("./spreadsheet_actions_run").then((m) => m.run(ctx, back, act));
+  const item = (label: string, act: Act): [string, () => void] => [label, () => go(act)];
+  return {
+    key(e) {
+      const act = pick(e);
+      if (act) go(act);
+      return !!act;
+    },
+    items: [
+      item(TEXT.goTo, "goTo"),
+      {
+        label: TEXT.freeze,
+        children: [
+          item(TEXT.freezeRow, "freezeRow"),
+          item(TEXT.freezeCol, "freezeCol"),
+          item(TEXT.freezeAt, "freezeAt"),
+          item(TEXT.unfreeze, "unfreeze"),
+        ],
+      },
+      item(TEXT.insert, "insert"),
+      item(TEXT.remove, "remove"),
+      item(TEXT.split, "split"),
+      item(TEXT.dedupe, "dedupe"),
+      item(TEXT.series, "series"),
+      { label: TEXT.outline, children: [item(TEXT.group, "group"), item(TEXT.ungroup, "ungroup")] },
+    ],
+  };
+}
diff --git a/A00_Common/spreadsheet/spreadsheet_actions_run.ts b/A00_Common/spreadsheet/spreadsheet_actions_run.ts
new file mode 100644
index 00000000..44d002e6
--- /dev/null
+++ b/A00_Common/spreadsheet/spreadsheet_actions_run.ts
@@ -0,0 +1,170 @@
+/* =============================================================================
+ * spreadsheet_actions_run.ts  (주인 D)
+ * `spreadsheet_actions.ts` 단축키 · 메뉴가 부르는 몸통 — 처음 누를 때 늦게 불러옴(크기 예산).
+ * ========================================================================== */
+
+import { toA1 } from "./spreadsheet_address";
+import { watchClose, type Act } from "./spreadsheet_actions";
+import { cellStyleAt } from "./spreadsheet_cellstyle";
+import { LAST_C, LAST_R } from "./spreadsheet_selection";
+import type { CellRange, CellStyle, Command } from "./spreadsheet_types";
+import type { SpreadsheetContext } from "./spreadsheet_view_types";
+
+/** 엑셀 날짜 일련번호 0 = 1899-12-30 */
+const EPOCH = Date.UTC(1899, 11, 30);
+
+export function run(ctx: SpreadsheetContext, back: () => void, act: Act): void {
+  const insert = () => import("./spreadsheet_insert_dialog");
+  const view = () => import("./spreadsheet_view_menu");
+  const tools = () => import("./spreadsheet_data_tools");
+  /** 늦게 불러 창을 열고 닫히면 격자로 */
+  const dialog = <M>(load: () => Promise<M>, open: (m: M) => void) =>
+    void load().then((m) => (open(m), watchClose(back)));
+  const freezeBy = (pick: (m: Awaited<ReturnType<typeof view>>) => void) =>
+    void view().then((m) => (pick(m), back()));
+
+  const range = (): CellRange => ctx.selection.범위[0];
+  const fullRows = (g: CellRange) => g.c0 === 0 && g.c1 === LAST_C;
+  const fullCols = (g: CellRange) => g.r0 === 0 && g.r1 === LAST_R;
+  const span = (a: number, b: number) => Array.from({ length: b - a + 1 }, (_, i) => a + i);
+  const id = () => ctx.selection.시트;
+
+  /** 칸 넣기 · 지우기 — 행 · 열 통째 고름이면 엑셀처럼 창 없이 바로 */
+  function cells(add: boolean): void {
+    const g = range();
+    if (fullRows(g) || fullCols(g)) {
+      const rows = fullRows(g);
+      ctx.dispatch({
+        종류: rows ? (add ? "행넣기" : "행지우기") : add ? "열넣기" : "열지우기",
+        시트: id(),
+        at: rows ? g.r0 : g.c0,
+        수: rows ? g.r1 - g.r0 + 1 : g.c1 - g.c0 + 1,
+      });
+    } else
+      dialog(insert, (m) => (add ? m.openInsertCellsDialog(ctx) : m.openDeleteCellsDialog(ctx)));
+  }
+
+  function hide(rows: boolean, 숨김: boolean): void {
+    const g = range();
+    const 번호 = rows ? span(g.r0, g.r1) : span(g.c0, g.c1);
+    ctx.dispatch({ 종류: "숨김", 시트: id(), 축: rows ? "행" : "열", 번호, 숨김 });
+  }
+
+  function group(on: boolean): void {
+    const g = range();
+    const cols = fullCols(g) && !fullRows(g);
+    const 번호 = cols ? span(g.c0, g.c1) : span(g.r0, g.r1);
+    const 묶음 = on ? { 층: 1 } : null;
+    ctx.dispatch({ 종류: "묶음설정", 시트: id(), 축: cols ? "열" : "행", 번호, 묶음 });
+  }
+
+  function flip(key: keyof CellStyle): void {
+    const { r, c } = ctx.selection.활성;
+    const on = !!cellStyleAt(ctx.book, ctx.sheet(), r, c)[key];
+    ctx.dispatch({ 종류: "서식", 시트: id(), 범위: ctx.selection.범위, 바꿀: { [key]: !on } });
+  }
+
+  /** 바깥 테두리(가는 선) — 가장자리 칸마다 지금 테두리에 변을 더함 */
+  function outline(): void {
+    const g = range();
+    const n = (g.r1 - g.r0 + 1) * (g.c1 - g.c0 + 1);
+    // ponytail: 가장자리 칸만 셈 · 행 · 열 통째(백만 칸)는 안 함 — 쓴 범위로 자르면 풀림
+    if (fullRows(g) || fullCols(g) || n > 1e5) return;
+    const cmds: Command[] = [];
+    for (let r = g.r0; r <= g.r1; r++)
+      for (let c = g.c0; c <= g.c1; c++) {
+        const sides = [
+          r === g.r0 && "위",
+          r === g.r1 && "아래",
+          c === g.c0 && "왼",
+          c === g.c1 && "오른",
+        ].filter(Boolean) as ("위" | "아래" | "왼" | "오른")[];
+        if (!sides.length) continue;
+        const 테두리 = { ...cellStyleAt(ctx.book, ctx.sheet(), r, c).테두리 };
+        for (const s of sides) 테두리[s] = { 선: "thin" };
+        cmds.push({
+          종류: "서식",
+          시트: id(),
+          범위: [{ r0: r, c0: c, r1: r, c1: c }],
+          바꿀: { 테두리 },
+        });
+      }
+    ctx.dispatch({ 종류: "묶음", 명령: cmds });
+  }
+
+  function today(): void {
+    const d = new Date();
+    const 값 = Math.round((Date.UTC(d.getFullYear(), d.getMonth(), d.getDate()) - EPOCH) / 864e5);
+    const { r, c } = ctx.selection.활성;
+    const key = toA1(r, c);
+    const 서식 = ctx.sheet().칸[key]?.서식;
+    ctx.dispatch({
+      종류: "묶음",
+      명령: [
+        { 종류: "칸", 시트: id(), 칸: { [key]: 서식 === undefined ? { 값 } : { 값, 서식 } } },
+        {
+          종류: "서식",
+          시트: id(),
+          범위: [{ r0: r, c0: c, r1: r, c1: c }],
+          바꿀: { 형식: "yyyy-mm-dd" },
+        },
+      ],
+    });
+  }
+
+  /** 다음 · 이전 보이는 시트 */
+  function sheetStep(d: number): void {
+    const list = ctx.book.시트.filter((s) => !s.숨김);
+    const i = list.findIndex((s) => s.id === id());
+    const to = list[i + d];
+    if (to) ctx.showSheet(to.id);
+  }
+
+  const goTo = () => dialog(view, (m) => m.openGoToDialog(ctx));
+
+  function clearBorders(): void {
+    ctx.dispatch({ 종류: "서식", 시트: id(), 범위: ctx.selection.범위, 바꿀: { 테두리: null } });
+  }
+
+  if (act.startsWith("flip:")) return flip(act.slice(5) as keyof CellStyle);
+  switch (act) {
+    case "goTo":
+      return goTo();
+    case "insert":
+    case "remove":
+      return cells(act === "insert");
+    case "hideRows":
+    case "hideCols":
+    case "showRows":
+    case "showCols":
+      return hide(act.endsWith("Rows"), act.startsWith("hide"));
+    case "group":
+    case "ungroup":
+      return group(act === "group");
+    case "outline":
+      return outline();
+    case "clearBorders":
+      return clearBorders();
+    case "today":
+      return today();
+    case "next":
+    case "prev":
+      return sheetStep(act === "next" ? 1 : -1);
+    case "newSheet":
+      return ctx.root.querySelector<HTMLElement>(".ss-tabs__add")?.click();
+    case "freezeRow":
+      return freezeBy((m) => m.freezeFirstRow(ctx));
+    case "freezeCol":
+      return freezeBy((m) => m.freezeFirstColumn(ctx));
+    case "freezeAt":
+      return freezeBy((m) => m.freezeAtActiveCell(ctx));
+    case "unfreeze":
+      return freezeBy((m) => m.unfreezePanes(ctx));
+    case "split":
+      return dialog(tools, (m) => m.openTextToColumnsDialog(ctx));
+    case "dedupe":
+      return dialog(tools, (m) => m.openRemoveDuplicatesDialog(ctx));
+    case "series":
+      return dialog(tools, (m) => m.openFillSeriesDialog(ctx));
+  }
+}
diff --git a/A00_Common/spreadsheet/spreadsheet_data_menu.ts b/A00_Common/spreadsheet/spreadsheet_data_menu.ts
index 431cd309..a5d55e61 100644
--- a/A00_Common/spreadsheet/spreadsheet_data_menu.ts
+++ b/A00_Common/spreadsheet/spreadsheet_data_menu.ts
@@ -3,7 +3,8 @@
  * 데이터 단추 · 메뉴 잇기 — 수식 입력줄 앞 [↑] [↓] [필터] [데이터 ▾].
  *   정렬 · 자동 필터(sub3 `spreadsheet_sort_dialog` · `spreadsheet_filter`) ·
  *   조건부 서식 · 데이터 유효성 · 이름 관리 · 시트 숨김/탭 색(sub4 패널 — 부품 오른위 창에 띄움) · 눈금선 ·
- *   수식 분석(sub3 — 선행 · 종속 추적 화살표 · 화살표 지우기 · 수식 계산 · 오류 ⚠ 풍선) · 자동 합계(Σ · Alt+=).
+ *   수식 분석(sub3 — 선행 · 종속 추적 화살표 · 화살표 지우기 · 수식 계산 · 오류 ⚠ 풍선) · 자동 합계(Σ · Alt+=) ·
+ *   이동 · 틀 고정 · 칸 넣기/지우기 · 데이터 도구 · 윤곽(`spreadsheet_actions.ts`).
  * 유효성 목록 칸은 고르면 칸 옆 ▼ · Alt+↓ 로 값 목록(필터 머리 칸이면 필터 목록이 먼저).
  * 누를 때만 쓰는 창(정렬 · 조건부 서식 · 시트)은 `import()` 로 늦게 — 크기 예산(열 때 받는 조각).
  * ========================================================================== */
@@ -13,11 +14,13 @@ import { createMapContextMenu, type MapContextMenuItem } from "@ui/ui_template_c
 import { el, showToast } from "@ui/ui_template_elements";
 import { parseRange, rangeToA1, toA1 } from "./spreadsheet_address";
 import { autoSumRange } from "./spreadsheet_autosum";
-import { attachErrorTip } from "./spreadsheet_errcheck";
-import { openEvalSteps } from "./spreadsheet_eval_steps";
-import { attachFilter, toggleFilter } from "./spreadsheet_filter";
+import { isError } from "./spreadsheet_eval";
+import type { FilterHandle } from "./spreadsheet_filter";
 import { createNameManagerPanel } from "./spreadsheet_names";
-import { attachTrace } from "./spreadsheet_trace";
+import { createSheetExtraPanel } from "./spreadsheet_sheet_extra";
+import { mountActions } from "./spreadsheet_actions";
+import type { ErrorTipHandle } from "./spreadsheet_errcheck";
+import type { TraceHandle } from "./spreadsheet_trace";
 import {
   createValidationDropdown,
   createValidationPanel,
@@ -52,19 +55,48 @@ const TEXT = {
 export interface DataMenu {
   /** 수식 입력줄 앞에 둘 단추들 */
   buttons: HTMLElement[];
-  keys: Pick<KeyHooks, "filter" | "dropdown" | "autosum">;
+  keys: Pick<KeyHooks, "filter" | "dropdown" | "autosum" | "more">;
   part: PartHandle;
 }
 
 export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMenu {
-  const filter = attachFilter(ctx);
-  const trace = attachTrace(ctx);
-  const tip = attachErrorTip(ctx, trace);
+  // 자동 필터는 시트에 필터가 있거나 켤 때 불러옴(크기 예산)
+  let filter: FilterHandle | null = null;
+  let filterMod: Promise<typeof import("./spreadsheet_filter")> | null = null;
+  const loadFilter = () =>
+    (filterMod ??= import("./spreadsheet_filter").then((m) => {
+      filter = m.attachFilter(ctx);
+      filter.refresh();
+      return m;
+    }));
+  const toggleFilter = (): void => void loadFilter().then((m) => m.toggleFilter(ctx));
+  // 수식 분석(추적 · ⚠ 풍선 · 수식 계산)은 처음 쓸 때 — 메뉴 · 오류 칸 · 글 숫자 칸을 고르면
+  type Audit = { trace: TraceHandle; tip: ErrorTipHandle };
+  let audit: Audit | null = null;
+  let loading: Promise<Audit> | null = null;
+  const loadAudit = () =>
+    (loading ??= Promise.all([
+      import("./spreadsheet_trace"),
+      import("./spreadsheet_errcheck"),
+    ]).then(([t, e]) => {
+      const trace = t.attachTrace(ctx);
+      audit = { trace, tip: e.attachErrorTip(ctx, trace) };
+      audit.tip.refresh();
+      return audit;
+    }));
+  const warnAt = (): boolean => {
+    const { r, c } = ctx.selection.활성;
+    const cell = ctx.sheet().칸[toA1(r, c)];
+    if (!cell) return false;
+    if (cell.식 !== undefined) return isError(ctx.engine.value(ctx.selection.시트, r, c));
+    return typeof cell.값 === "string" && /\d/.test(cell.값);
+  };
   let closeSteps: (() => void) | null = null;
   const traced = (more: boolean): void => {
     if (!more) showToast(TEXT.noMore, "info");
     back();
   };
+  const act = mountActions(ctx, back);
   const menu = createMapContextMenu("ss");
   ctx.root.append(menu.element);
   let closeSort: (() => void) | null = null;
@@ -128,16 +160,17 @@ export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMe
     closeSort?.();
     closeSort = m.openSortDialog(ctx);
   }
-  function evalSteps(): void {
+  async function evalSteps(): Promise<void> {
+    const m = await import("./spreadsheet_eval_steps");
     closeSteps?.();
-    closeSteps = openEvalSteps(ctx);
+    closeSteps = m.openEvalSteps(ctx);
   }
 
   function openMenu(anchor: HTMLElement): void {
     const r = anchor.getBoundingClientRect();
     const items: MapContextMenuItem[] = [
       [TEXT.sort, () => void sortDialog()],
-      [TEXT.filterItem, () => (toggleFilter(ctx), back())],
+      [TEXT.filterItem, () => (toggleFilter(), back())],
       [
         TEXT.condfmt,
         () =>
@@ -147,21 +180,16 @@ export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMe
       ],
       [TEXT.validation, () => void openPanel(TEXT.validation, async () => createValidationPanel)],
       [TEXT.names, () => void openPanel(TEXT.names, async () => createNameManagerPanel)],
-      [
-        TEXT.sheets,
-        () =>
-          void openPanel(TEXT.sheets, () =>
-            import("./spreadsheet_sheet_extra").then((m) => m.createSheetExtraPanel),
-          ),
-      ],
+      [TEXT.sheets, () => void openPanel(TEXT.sheets, async () => createSheetExtraPanel)],
       [TEXT.grid, () => (toggleGridlines(), back())],
+      ...act.items,
       {
         label: TEXT.audit,
         children: [
-          [TEXT.prec, () => traced(trace.precedents())],
-          [TEXT.dep, () => traced(trace.dependents())],
-          [TEXT.clear, () => (trace.clear(), back())],
-          [TEXT.steps, evalSteps],
+          [TEXT.prec, () => void loadAudit().then((a) => traced(a.trace.precedents()))],
+          [TEXT.dep, () => void loadAudit().then((a) => traced(a.trace.dependents()))],
+          [TEXT.clear, () => (audit?.trace.clear(), back())],
+          [TEXT.steps, () => void evalSteps()],
         ],
       },
     ];
@@ -232,7 +260,7 @@ export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMe
     : [
         button("↑", TEXT.asc, () => void sortQuick(false), true),
         button("↓", TEXT.desc, () => void sortQuick(true), true),
-        button("필터", TEXT.filter, () => toggleFilter(ctx)),
+        button("필터", TEXT.filter, toggleFilter),
         button("Σ", TEXT.sum, autosum, true),
         button(TEXT.menu, TEXT.menu, openMenu, true),
       ];
@@ -240,22 +268,25 @@ export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMe
   return {
     buttons,
     keys: {
-      filter: () => toggleFilter(ctx),
+      filter: toggleFilter,
       autosum,
+      more: act.key,
       dropdown() {
         const f = ctx.sheet().필터;
         const g = f && parseRange(f.범위);
         const { r, c } = ctx.selection.활성;
-        if (g && r === g.r0 && c >= g.c0 && c <= g.c1) return (filter.open(c), true);
+        if (g && filter && r === g.r0 && c >= g.c0 && c <= g.c1) return (filter.open(c), true);
         return openList();
       },
     },
     part: {
       root: null,
       refresh() {
-        filter.refresh();
-        trace.refresh();
-        tip.refresh();
+        filter?.refresh();
+        if (!filter && ctx.sheet().필터) void loadFilter();
+        audit?.trace.refresh();
+        audit?.tip.refresh();
+        if (!audit && warnAt()) void loadAudit();
         panel?.refresh();
         closeDrop();
         const { r, c } = ctx.selection.활성;
@@ -272,10 +303,10 @@ export function mountDataMenu(ctx: SpreadsheetContext, back: () => void): DataMe
         closeSort?.();
         closePanel();
         closeDrop();
-        filter.destroy();
+        filter?.destroy();
         closeSteps?.();
-        trace.destroy();
-        tip.destroy();
+        audit?.trace.destroy();
+        audit?.tip.destroy();
         menu.element.remove();
         dialog.remove();
         arrow.remove();
diff --git a/A00_Common/spreadsheet/spreadsheet_editor.ts b/A00_Common/spreadsheet/spreadsheet_editor.ts
index 5d5736b8..fc4de019 100644
--- a/A00_Common/spreadsheet/spreadsheet_editor.ts
+++ b/A00_Common/spreadsheet/spreadsheet_editor.ts
@@ -110,6 +110,31 @@ export function insertableAt(text: string, pos: number): boolean {
   return i >= 0 && "=(,+-*/^&<>:;".includes(text[i]);
 }
 
+/** F4 — caret 에 걸친 참조의 $ 를 A1 → $A$1 → A$1 → $A1 → A1 로(범위면 두 끝 같이) · caret 은 참조 끝 */
+export function cycleAbs(text: string, pos: number): { text: string; caret: number } | null {
+  if (text[0] !== "=") return null;
+  const t = tokenize(text.slice(1)).find(
+    (t) => t.kind === "ref" && t.start < pos && pos <= t.end + 1,
+  );
+  if (!t) return null;
+  const bang = t.text.lastIndexOf("!") + 1;
+  const part = /(\$?)([A-Za-z]{1,3})(\$?)(\d+)/g;
+  const first = part.exec(t.text.slice(bang));
+  if (!first) return null;
+  const state = (first[1] ? 1 : 0) + (first[3] ? 2 : 0); // 0 없음 · 3 둘 다 · 2 행만 · 1 열만
+  const next = { 0: 3, 3: 2, 2: 1, 1: 0 }[state]!;
+  const ref =
+    t.text.slice(0, bang) +
+    t.text
+      .slice(bang)
+      .replace(
+        part,
+        (_m, _a, col, _b, row) => (next & 1 ? "$" : "") + col + (next & 2 ? "$" : "") + row,
+      );
+  const end = t.start + 1 + ref.length;
+  return { text: text.slice(0, t.start + 1) + ref + text.slice(t.end + 1), caret: end };
+}
+
 /** 식 글 참조 → 색 테두리 목록(같은 글이면 같은 색) */
 export function refHighlights(
   text: string,
diff --git a/A00_Common/spreadsheet/spreadsheet_extras.ts b/A00_Common/spreadsheet/spreadsheet_extras.ts
index 2c78275d..1b89db2e 100644
--- a/A00_Common/spreadsheet/spreadsheet_extras.ts
+++ b/A00_Common/spreadsheet/spreadsheet_extras.ts
@@ -7,11 +7,12 @@
  * ========================================================================== */
 
 import { el } from "@ui/ui_template_elements";
+import { watchClose } from "./spreadsheet_actions";
 import { parseClipboard } from "./spreadsheet_clipboard";
 import { attachComments, getComment, setComment } from "./spreadsheet_comments";
 import { mountDataMenu } from "./spreadsheet_data_menu";
 import type { Editor } from "./spreadsheet_editor";
-import { mountFindPanel } from "./spreadsheet_find_panel";
+import type { FindPanelHandle } from "./spreadsheet_find_panel";
 import { createFormatPainter } from "./spreadsheet_format_painter";
 import type { KeyHooks } from "./spreadsheet_keys";
 import type { MouseHooks } from "./spreadsheet_mouse";
@@ -51,8 +52,12 @@ export function attachExtras(
     node.style.top = `${p.y}px`;
   };
 
-  // ── 찾기 ───────────────────────────────────────────────────────────────
-  const find = mountFindPanel(ctx, back);
+  // ── 찾기(처음 열 때 불러옴 — 크기 예산) ─────────────────────────────────────
+  let find: FindPanelHandle | null = null;
+  async function openFind(replace: boolean): Promise<void> {
+    find ??= (await import("./spreadsheet_find_panel")).mountFindPanel(ctx, back);
+    find.open(replace);
+  }
 
   // ── 메모 — 풍선 · 편집 ─────────────────────────────────────────────────
   const comments = attachComments(ctx);
@@ -118,12 +123,7 @@ export function attachExtras(
   async function openFormat(): Promise<void> {
     if (ctx.readOnly) return;
     (await import("./spreadsheet_format_dialog")).openFormatDialog(ctx); // 늦게 — 크기 예산
-    const watch = new MutationObserver(() => {
-      if (document.querySelector(".ss-fmtdlg")) return;
-      watch.disconnect();
-      back();
-    });
-    watch.observe(document.body, { childList: true });
+    watchClose(back);
   }
   fmt.addEventListener("click", () => void openFormat());
   if (!ctx.readOnly) ed.bar.prepend(fmt, brush);
@@ -194,6 +194,7 @@ export function attachExtras(
       ctx.root.removeEventListener("paste", onPaste, true);
       toolbarRoot?.removeEventListener("click", onToolbarClick);
       toolbarRoot?.removeEventListener("change", back);
+      find?.destroy();
       memo.remove();
       picker.remove();
       brush.remove();
@@ -203,7 +204,7 @@ export function attachExtras(
 
   return {
     keys: {
-      find: (replace) => find.open(replace),
+      find: (replace) => void openFind(replace),
       pasteSpecial: () => (armed = true),
       comment: editMemo,
       formatDialog: () => void openFormat(),
@@ -230,6 +231,6 @@ export function attachExtras(
         put(comments.root!, hit.r, hit.c); // showBalloon 의 cellBox 자리 → 화면 자리로 고침
       },
     },
-    parts: [find, comments, data.part, self],
+    parts: [comments, data.part, self],
   };
 }
diff --git a/A00_Common/spreadsheet/spreadsheet_keys.ts b/A00_Common/spreadsheet/spreadsheet_keys.ts
index ed815923..829e128f 100644
--- a/A00_Common/spreadsheet/spreadsheet_keys.ts
+++ b/A00_Common/spreadsheet/spreadsheet_keys.ts
@@ -4,11 +4,13 @@
  * 편집 중: Enter/Tab 확정 이동 · Alt+Enter 줄바꿈 · Ctrl+Enter 고름 전부 · Esc · F2 방식 바꿈 ·
  *          enter 방식 방향키 = 확정 이동(식 참조 자리면 가리키기).
  * 고름 중: 방향(Shift 늘림 · Ctrl 끝) · Home · Ctrl+Home/End · PgUp/PgDn · Enter/Tab(고름 안 돌기) ·
- *          F2 · Delete · Backspace · Ctrl+A · Shift/Ctrl+Space · Ctrl+Z/Y · Ctrl+D/R.
+ *          F2 · Delete · Backspace · Ctrl+A · Shift/Ctrl+Space · Ctrl+Z/Y · Ctrl+D/R · 그 밖은 hooks.more.
+ * 식 편집 중 F4 = 참조 $ 돌리기(A1 → $A$1 → A$1 → $A1).
  * 글자 키는 막지 않음 — textarea 의 input · compositionstart 가 편집을 엶(한글 첫 글자).
  * 복사 · 붙여넣기(Ctrl+C/X/V)는 막지 않음 — E 클립보드가 copy · paste 사건으로 받음.
  * ========================================================================== */
 
+import { cycleAbs } from "./spreadsheet_editor";
 import { fillCells } from "./spreadsheet_fill";
 import {
   cycle,
@@ -49,6 +51,8 @@ export interface KeyHooks {
   filter?(): void;
   /** Alt+↓ — 필터 머리 칸이면 값 목록을 열고 true */
   dropdown?(): boolean;
+  /** 고름 중 그 밖 단축키(`spreadsheet_actions.ts`) — 받았으면 true */
+  more?(e: KeyboardEvent): boolean;
 }
 
 export function attachKeys(ctx: SpreadsheetContext, ed: Editor, hooks: KeyHooks = {}): () => void {
@@ -88,6 +92,15 @@ export function attachKeys(ctx: SpreadsheetContext, ed: Editor, hooks: KeyHooks
       case "F2":
         ed.toggleMode();
         return true;
+      case "F4": {
+        const node = e.target as HTMLTextAreaElement;
+        const got = cycleAbs(node.value, node.selectionStart);
+        if (!got) return false;
+        node.value = got.text;
+        node.setSelectionRange(got.caret, got.caret);
+        node.dispatchEvent(new Event("input"));
+        return true;
+      }
     }
     const arrow = ARROWS[e.key];
     if (arrow && !arrow[1] && !e.shiftKey && ed.suggestMove(arrow[0])) return true;
@@ -108,6 +121,7 @@ export function attachKeys(ctx: SpreadsheetContext, ed: Editor, hooks: KeyHooks
     const sel = ctx.selection;
     const arrow = ARROWS[e.key];
     if (e.altKey && e.key === "ArrowDown" && hooks.dropdown?.()) return true;
+    if (hooks.more?.(e)) return true;
     if (e.altKey && e.key === "=" && hooks.autosum && !ctx.readOnly) return (hooks.autosum(), true);
     if (arrow && !e.altKey) {
       go(move(sheet, sel, arrow[0], arrow[1], { extend: e.shiftKey, jump: ctrl }));
diff --git a/A00_Common/spreadsheet/spreadsheet_selection.ts b/A00_Common/spreadsheet/spreadsheet_selection.ts
index 310846e5..46c0c3e8 100644
--- a/A00_Common/spreadsheet/spreadsheet_selection.ts
+++ b/A00_Common/spreadsheet/spreadsheet_selection.ts
@@ -51,16 +51,17 @@ export function mergeAt(sheet: Sheet, r: number, c: number): CellRange {
   return merges(sheet).find((m) => inRange(m, r, c)) ?? { r0: r, c0: c, r1: r, c1: c };
 }
 
-/** 숨긴 행 · 필터로 걸러진 행(방향키 · Enter 가 건너뜀 — 엑셀) */
+/** 숨긴 행 · 필터로 걸러진 행 · 접힌 묶음(방향키 · Enter 가 건너뜀 — 엑셀) */
 export function rowHidden(sheet: Sheet, r: number): boolean {
   const row = sheet.행?.[String(r + 1)];
-  return !!(row?.숨김 || row?.걸러짐);
+  return !!(row?.숨김 || row?.걸러짐 || row?.묶음?.접힘);
 }
 
 export function colHidden(sheet: Sheet, c: number): boolean {
   const cols = sheet.열;
   if (!cols) return false;
-  return !!cols[colName(c)]?.숨김;
+  const col = cols[colName(c)];
+  return !!(col?.숨김 || col?.묶음?.접힘);
 }
 
 export function hasValue(sheet: Sheet, r: number, c: number): boolean {
diff --git a/resources/tester/spreadsheet/helper_spreadsheet_d.cjs b/resources/tester/spreadsheet/helper_spreadsheet_d.cjs
index a0461a2d..16b3be28 100644
--- a/resources/tester/spreadsheet/helper_spreadsheet_d.cjs
+++ b/resources/tester/spreadsheet/helper_spreadsheet_d.cjs
@@ -102,5 +102,26 @@ const out = {
     const t = mouse.fillTarget({ r0: 1, c0: 1, r1: 3, c1: 2 }, p);
     return [addr.rangeToA1(t.target), t.clear && addr.rangeToA1(t.clear)];
   }),
+  // F4 참조 $ 돌리기 — 네 번이면 제자리 · 범위 두 끝 · 시트 이름 · 참조 밖이면 null
+  abs: (() => {
+    const seq = [];
+    let t = { text: "=A1+B2", caret: 3 };
+    for (let i = 0; i < 4; i++) seq.push((t = ed.cycleAbs(t.text, t.caret)).text);
+    const range = ed.cycleAbs("=SUM(Sheet2!A1:B3)", 10);
+    return [
+      ...seq,
+      `${range.text}|${range.caret}`,
+      ed.cycleAbs("=SUM(1)", 5),
+      ed.cycleAbs("A1", 1),
+    ];
+  })(),
+  // 접힌 묶음 행 건너뜀(2 → 5)
+  foldSkip: (() => {
+    const s = {
+      ...s1,
+      행: { ...s1.행, 3: { 묶음: { 층: 1, 접힘: true } }, 4: { 묶음: { 층: 1, 접힘: true } } },
+    };
+    return addr.toA1(sel.move(s, sel.selectCell(s, 1, 11), 1, 0).활성.r, 11);
+  })(),
 };
 console.log(JSON.stringify(out));
diff --git a/resources/tester/spreadsheet/test_spreadsheet_d_input.py b/resources/tester/spreadsheet/test_spreadsheet_d_input.py
index 6b8a4af9..3a1d008f 100644
--- a/resources/tester/spreadsheet/test_spreadsheet_d_input.py
+++ b/resources/tester/spreadsheet/test_spreadsheet_d_input.py
@@ -93,3 +93,16 @@ def test_formula_hint(r):
         {"func": "IF", "arg": 1},
         None,
     ]
+
+
+def test_abs_cycle_and_fold(r):
+    assert r["abs"] == [
+        "=$A$1+B2",
+        "=A$1+B2",
+        "=$A1+B2",
+        "=A1+B2",
+        "=SUM(Sheet2!$A$1:$B$3)|21",
+        None,
+        None,
+    ]
+    assert r["foldSkip"] == "L5"