diff --git a/M02_MasterTemplete/M02_MasterTemplete_Api_Fetch.ts b/M02_MasterTemplete/M02_MasterTemplete_Api_Fetch.ts
index 4c34f3e76..5bc26211c 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Api_Fetch.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Api_Fetch.ts
@@ -54,7 +54,8 @@ function reason(detail: unknown, status: number): string {
   return lines.filter(Boolean).join(" · ") || `HTTP ${status}`;
 }
 
-/** 지금 화면의 층 — 시스템 = 옛 길 그대로 · 회사 · 개인 = `/layers/{층}` 아래(구조물집계표 · 조합 길 모두) ·
+/** 지금 화면의 층 — 시스템 · 회사 · 개인 모두 `/layers/{층}` 아래(구조물집계표 · 조합 길 모두 · 읽기는
+ * 로그인 누구나 · 쓰기는 서버 층 권한 · 옛 `/api/m02/templates/*` 는 시스템 관리자 전용이라 안 씀) ·
  * `owner` = 남의 층을 볼 때 주인(회사 `{C}` · 개인 `{C}/{U}` · 자기 층 = null · PLAN 27-1c) —
  * 지금 층 길에 `?owner=` 로 붙음(M02 화면을 떠나면 페이지가 시스템 · null 로 되돌림) */
 let activeLayer: Layer = "system";
@@ -73,24 +74,20 @@ const owned = (layer: Layer, path: string): string =>
     ? `${path}${path.includes("?") ? "&" : "?"}owner=${enc(activeOwner)}`
     : path;
 const scoped = <T>(path: string, init: RequestInit = {}): Promise<T> =>
-  call<T>(
-    owned(activeLayer, `${activeLayer === "system" ? "" : `/layers/${activeLayer}`}${path}`),
-    init,
-  );
+  call<T>(owned(activeLayer, `/layers/${activeLayer}${path}`), init);
 
 const q = (projectId: string | null): string => (projectId ? `?project_id=${enc(projectId)}` : "");
-const head = (layer: Layer): string =>
-  layer === "system" ? "/templates" : `/layers/${layer}/templates`;
+const head = (layer: Layer): string => `/layers/${layer}/templates`;
 const item = (layer: Layer, kind: Kind, name: string, projectId: string | null): string =>
   owned(layer, `${head(layer)}/${kind}/${enc(name)}${layer === "system" ? "" : q(projectId)}`);
 
-/** 시스템 길은 배열 · 층 길은 `{층, 양식: [...]}` — 둘 다 목록으로 */
+/** 층 길은 `{층, 양식: [...]}` · 옛 시스템 길은 배열 — 둘 다 목록으로 */
 export const listTemplates = async (
   layer: Layer,
   projectId: string | null,
 ): Promise<TemplateInfo[]> => {
   const got = await call<TemplateInfo[] | { 양식: TemplateInfo[] }>(
-    layer === "system" ? head(layer) : owned(layer, `${head(layer)}${q(projectId)}`),
+    owned(layer, `${head(layer)}${layer === "system" ? "" : q(projectId)}`),
   );
   return Array.isArray(got) ? got : got.양식;
 };
@@ -114,7 +111,7 @@ export const saveTemplate = (
 
 /** 시스템 층만 지움 */
 export const deleteTemplate = (kind: Kind, name: string, 판: string): Promise<{ ok: boolean }> =>
-  call(`/templates/${kind}/${enc(name)}?판=${enc(판)}`, { method: "DELETE" });
+  call(`${head("system")}/${kind}/${enc(name)}?판=${enc(판)}`, { method: "DELETE" });
 
 /** 개인·회사 층에서 지움 — 판이 맞을 때만(다르면 409) */
 export const deleteLayerTemplate = (
@@ -204,7 +201,8 @@ export interface OptionsDoc {
   종류: OptionKind[];
 }
 
-export const fetchStructureOptions = (): Promise<OptionsDoc> => call("/structure-options");
+export const fetchStructureOptions = (): Promise<OptionsDoc> =>
+  call("/layers/system/structure-options"); // 읽기 = 로그인 누구나 · 고쳐 씀은 옛 길(시스템 관리자)
 
 /** 고쳐 씀 — 숨긴 것만 보냄 · 낡은 판이면 StaleError · 돌려받는 것은 새 문서 */
 export const saveStructureOptions = (판: string, 표시: OptionsDoc["표시"]): Promise<OptionsDoc> =>
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Router_Items.py b/M02_MasterTemplete/M02_MasterTemplete_Router_Items.py
index ceaf54a23..89fb986df 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Router_Items.py
+++ b/M02_MasterTemplete/M02_MasterTemplete_Router_Items.py
@@ -288,6 +288,14 @@ def get_numbers(layer: Layer, owner: str | None = None, session: Session = Depen
     return _call(_root(session, layer, owner), store.structure_numbers)
 
 
+@router.get("/layers/system/structure-options")
+def get_structure_options(session: Session = Depends(verify_session)) -> dict:
+    """구조물 옵션 보이기 읽기 — 로그인 누구나(마스터 한 벌 · 고쳐 씀은 옛 길 시스템 관리자만)."""
+    from M02_MasterTemplete import M02_MasterTemplete_Options as options
+
+    return _call(_root(session, "system"), options.listing)
+
+
 @router.get("/layers/{layer}/structure-combos")
 def get_combos(layer: Layer, owner: str | None = None, session: Session = Depends(verify_session)):
     return _call(_root(session, layer, owner), store.read_combos)
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Router_Layers.py b/M02_MasterTemplete/M02_MasterTemplete_Router_Layers.py
index 52667b2fe..639f400c2 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Router_Layers.py
+++ b/M02_MasterTemplete/M02_MasterTemplete_Router_Layers.py
@@ -276,6 +276,8 @@ async def list_layer(
     manifest = await asyncio.to_thread(layers.read_manifest, folder)
     for row in rows:
         row["출처"] = manifest.get(f"{row['종류']}/{row['이름']}")
+        if (row["종류"], row["이름"]) in store.IN_USE:  # 화면이 지우기 확인 창 전에 막음
+            row["쓰는곳"] = store.IN_USE[(row["종류"], row["이름"])]
     return {"층": layer, "양식": rows}
 
 
diff --git a/M02_MasterTemplete/M02_MasterTemplete_TreePanel_CopyTo.ts b/M02_MasterTemplete/M02_MasterTemplete_TreePanel_CopyTo.ts
index 38b03c5f6..ae6ab3e8b 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_TreePanel_CopyTo.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_TreePanel_CopyTo.ts
@@ -4,6 +4,7 @@
  * 아직 만든 것이 없는 남의 층(404)은 맨 위만 — 첫 쓰기 때 서버가 소속을 보고 뼈대를 세움.
  * ========================================================================== */
 
+import { t as L } from "@ui/ui_template_locale";
 import type { Layer, TreeView } from "./M02_MasterTemplete_Api_Fetch";
 import { askFolder } from "./M02_MasterTemplete_TreePanel_Dialogs";
 import { buildFolders, listFolders } from "./M02_MasterTemplete_TreePanel_Model";
@@ -22,5 +23,6 @@ export async function askCopyFolder(
 ): Promise<string[] | null> {
   const view = await fetchTree(to.layer, to.owner).catch(() => null);
   const folders = view ? listFolders(buildFolders(view)) : [];
-  return askFolder(to.label.replace("{n}", String(n)), folders, () => false, []);
+  const title = to.label.replace("{n}", String(n));
+  return askFolder(title, folders, () => false, [], L("M02_TreeCopyFolder"));
 }
diff --git a/M02_MasterTemplete/M02_MasterTemplete_TreePanel_Dialogs.ts b/M02_MasterTemplete/M02_MasterTemplete_TreePanel_Dialogs.ts
index ab090480f..73c701f68 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_TreePanel_Dialogs.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_TreePanel_Dialogs.ts
@@ -142,12 +142,14 @@ export function askNewItem(opt: {
   });
 }
 
-/** 옮길 폴더 고르기 — `folders` 에서 `blocked` 인 것은 뺌 · 맨 위(폴더 밖)는 늘 있음 */
+/** 옮길 폴더 고르기 — `folders` 에서 `blocked` 인 것은 뺌 · 맨 위(폴더 밖)는 늘 있음 ·
+ * `fieldLabel` = 칸 글(복사는 「복사할 폴더」) */
 export function askFolder(
   title: string,
   folders: string[][],
   blocked: (path: string[]) => boolean,
   current: string[],
+  fieldLabel: string = L("M02_TreeMoveTo"),
 ): Promise<string[] | null> {
   return new Promise((resolve) => {
     let done = false;
@@ -164,7 +166,7 @@ export function askFolder(
       beforeClose: () => (finish(null), true),
       mount: (body, close) => {
         const field = createSelectField({
-          label: L("M02_TreeMoveTo"),
+          label: fieldLabel,
           options: choices.map((path, i) => ({
             value: String(i),
             text: path.length ? path.join(" / ") : L("M02_TreeTop"),
diff --git a/resources/tester/test_m02_system_read.py b/resources/tester/test_m02_system_read.py
new file mode 100644
index 000000000..b86aaf039
--- /dev/null
+++ b/resources/tester/test_m02_system_read.py
@@ -0,0 +1,76 @@
+"""마스터 층 읽기는 층 길 한 벌(39-8 · sub1 검증 흠 H2) — 회사 관리자 · 일반도 `/layers/system/…` 로
+표 · 카드 · 일위대가 · 번호 · 장부 · 옵션을 읽음(200) · 쓰기는 서버가 그대로 막음(403).
+
+시스템 층 = 견본 표(임시 폴더) · storage = 임시 폴더.
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+import pytest
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from common_util.common_util_auth import verify_session
+from config import config_system
+from M02_MasterTemplete import M02_MasterTemplete_Router_Items as items_router
+from M02_MasterTemplete import M02_MasterTemplete_Router_Layers as layers_router
+from M02_MasterTemplete import M02_MasterTemplete_Store as store
+from M02_MasterTemplete import M02_Template_Layers as layers
+from resources.tester.test_m02_structure import write_sample_table
+
+SYS = "/api/m02/layers/system"
+TABLE = f"{SYS}/templates/table/구조물집계표"
+
+
+@pytest.fixture()
+def world(tmp_path, monkeypatch) -> dict[str, Any]:
+    system = tmp_path / "system"
+    system.mkdir()
+    write_sample_table(system)
+    monkeypatch.setattr(store, "FOLDER", system)
+    monkeypatch.setattr(layers, "SYSTEM_ROOT", system)
+    (tmp_path / "storage").mkdir()
+    monkeypatch.setattr(config_system, "STORAGE_BASE_DIR", str(tmp_path / "storage"))
+    with store.at(system):
+        store.create_structure("rv")
+    session: dict[str, Any] = {"user_id": 42, "company_id": 7, "role": "USER", "is_master": False}
+    app = FastAPI()
+    app.include_router(items_router.router)
+    app.include_router(layers_router.router)
+    app.dependency_overrides[verify_session] = lambda: session
+    return {"client": TestClient(app), "session": session}
+
+
+@pytest.mark.parametrize("role", ["USER", "ADMIN", "SYSTEM_ADMIN"])
+def test_세_계정_모두_마스터_층_읽기_200(world, role):
+    world["session"]["role"] = role
+    client = world["client"]
+    for url in (
+        f"{SYS}/templates",
+        TABLE,
+        f"{SYS}/templates/structure/rv",
+        f"{SYS}/templates/labor/rv",
+        f"{SYS}/templates/area/rv",
+        f"{SYS}/structures/numbers",
+        f"{SYS}/structure-combos",
+        f"{SYS}/structure-options",
+    ):
+        assert client.get(url).status_code == 200, url
+    rows = client.get(f"{SYS}/templates").json()["양식"]
+    table = next(r for r in rows if (r["종류"], r["이름"]) == ("table", "구조물집계표"))
+    assert table["쓰는곳"]  # 지우기 확인 창 전에 막는 글
+
+
+@pytest.mark.parametrize("role", ["USER", "ADMIN"])
+def test_회사_관리자_일반은_마스터_쓰기_403(world, role):
+    world["session"]["role"] = role
+    client = world["client"]
+    got = client.get(TABLE).json()
+    put = client.put(TABLE, json={"판": got["판"], "문서": got["문서"]})
+    assert put.status_code == 403
+    assert client.post(f"{SYS}/structures/c1").status_code == 403
+    assert client.post(f"{SYS}/labor/rv/copy?from=rv").status_code == 403
+    gone = client.delete(f"{SYS}/templates/area/rv?판=x")
+    assert gone.status_code == 403
diff --git a/ui_template/ui_template_locale_m2.ts b/ui_template/ui_template_locale_m2.ts
index 670d97500..78aa7c1c7 100644
--- a/ui_template/ui_template_locale_m2.ts
+++ b/ui_template/ui_template_locale_m2.ts
@@ -143,6 +143,7 @@ export const ui_locales_m2 = {
   M02_TreeItemName: ["항목 이름", "Item name"],
   M02_TreeUnit: ["단위", "Unit"],
   M02_TreeMoveTo: ["옮길 폴더", "Move to"],
+  M02_TreeCopyFolder: ["복사할 폴더", "Copy to folder"],
   M02_TreeTop: ["맨 위 (폴더 밖)", "Top (no folder)"],
   M02_TreeOk: ["확인", "OK"],
   M02_TreeCancel: ["취소", "Cancel"],