diff --git a/src/components/graph/menus/network-modifications/network-modification-node-editor.tsx b/src/components/graph/menus/network-modifications/network-modification-node-editor.tsx
index 16851651f6..eed07db772 100644
--- a/src/components/graph/menus/network-modifications/network-modification-node-editor.tsx
+++ b/src/components/graph/menus/network-modifications/network-modification-node-editor.tsx
@@ -180,6 +180,9 @@ const NetworkModificationNodeEditor = () => {
     const [isDragging, setIsDragging] = useState(false);
     const [isAssemblyDepthExceeded, setIsAssemblyDepthExceeded] = useState(false);
 
+    // Whether the current selection reaches inside a shared modification the user can't write into.
+    const [selectionContainsLockedModification, setSelectionContainsLockedModification] = useState(false);
+
     const [editDialogOpen, setEditDialogOpen] = useState<string | undefined>(undefined);
     const [editData, setEditData] = useState<NetworkModificationData | undefined>(undefined);
     const [editDataFetchStatus, setEditDataFetchStatus] = useState<FetchStatus>(FetchStatus.IDLE);
@@ -1039,9 +1042,14 @@ const NetworkModificationNodeEditor = () => {
         setIsUpdate(false);
     };
     const handleRowSelected = useCallback(
-        (selectedRows: ComposedModificationMetadata[], isAssemblyDepthExceeded: boolean) => {
+        (
+            selectedRows: ComposedModificationMetadata[],
+            isAssemblyDepthExceeded: boolean,
+            containsLockedModification: boolean
+        ) => {
             setSelectedNetworkModifications(selectedRows);
             setIsAssemblyDepthExceeded(isAssemblyDepthExceeded);
+            setSelectionContainsLockedModification(containsLockedModification);
         },
         [setSelectedNetworkModifications, setIsAssemblyDepthExceeded]
     );
@@ -1197,7 +1205,8 @@ const NetworkModificationNodeEditor = () => {
             isRootNode ||
             isAssemblyDepthExceeded ||
             isEditBlocked ||
-            selectionContainsShared
+            selectionContainsShared ||
+            selectionContainsLockedModification
         );
     }, [
         selectedNetworkModifications?.length,
@@ -1206,6 +1215,7 @@ const NetworkModificationNodeEditor = () => {
         isAssemblyDepthExceeded,
         isEditBlocked,
         selectionContainsShared,
+        selectionContainsLockedModification,
     ]);
 
     const disabledCompositeExport: boolean = useMemo(() => {
@@ -1311,7 +1321,8 @@ const NetworkModificationNodeEditor = () => {
                                 isEditBlocked ||
                                 mapDataLoading ||
                                 !currentNode ||
-                                isRootNode
+                                isRootNode ||
+                                selectionContainsLockedModification
                             }
                             data-testid="CutModification"
                         >
@@ -1351,7 +1362,7 @@ const NetworkModificationNodeEditor = () => {
                         <IconButton
                             onClick={doPasteModifications}
                             size={'small'}
-                            disabled={isPasteButtonDisabled || isRootNode}
+                            disabled={isPasteButtonDisabled || isRootNode || selectionContainsLockedModification}
                             data-testid="PasteModification"
                         >
                             <ContentPasteIcon />
@@ -1368,7 +1379,8 @@ const NetworkModificationNodeEditor = () => {
                                 isEditBlocked ||
                                 mapDataLoading ||
                                 !currentNode ||
-                                isRootNode
+                                isRootNode ||
+                                selectionContainsLockedModification
                             }
                             data-testid="DeleteModification"
                         >
diff --git a/src/hooks/use-study-path.ts b/src/hooks/use-study-path.ts
index 97a1f33944..ffed392d14 100644
--- a/src/hooks/use-study-path.ts
+++ b/src/hooks/use-study-path.ts
@@ -7,6 +7,7 @@
 
 import { useCallback, useEffect, useRef, useState } from 'react';
 import {
+    DirectoriesNotificationType,
     fetchDirectoryElementPath,
     NotificationsUrlKeys,
     snackWithFallback,
@@ -15,7 +16,6 @@ import {
     useSnackMessage,
 } from '@gridsuite/commons-ui';
 import { computeFullPath } from '../utils/compute-title';
-import { directoriesNotificationType } from '../utils/directories-notification-type';
 import type { UUID } from 'node:crypto';
 import { isMetadataUpdatedNotification, parseEventData, CommonStudyEventData } from 'types/notification-types';
 import { DIRECTORIES_INFOS, DirectoryInfos } from '../types/directory-server-types';
@@ -62,7 +62,7 @@ export default function useStudyPath(studyUuid: UUID | null) {
         (event: MessageEvent<string>) => {
             const eventData = JSON.parse(event.data);
             if (eventData.headers) {
-                if (eventData.headers['notificationType'] === directoriesNotificationType.UPDATE_DIRECTORY) {
+                if (eventData.headers['notificationType'] === DirectoriesNotificationType.UPDATE_DIRECTORY) {
                     // TODO: this receives notifications for all the public directories and all the user's private directories
                     // At least we don't fetch everytime a notification is received, but we should instead limit the
                     // number of notifications (they are sent to all the clients every time). Here we are only
diff --git a/src/utils/directories-notification-type.ts b/src/utils/directories-notification-type.ts
deleted file mode 100644
index ee0602ae45..0000000000
--- a/src/utils/directories-notification-type.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * Copyright (c) 2022, RTE (http://www.rte-france.com)
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-export const directoriesNotificationType = {
-    DELETE_DIRECTORY: 'DELETE_DIRECTORY',
-    ADD_DIRECTORY: 'ADD_DIRECTORY',
-    UPDATE_DIRECTORY: 'UPDATE_DIRECTORY',
-};