diff --git a/frontend/js/sidebar.js b/frontend/js/sidebar.js
index 7d10879..b65b546 100644
--- a/frontend/js/sidebar.js
+++ b/frontend/js/sidebar.js
@@ -3,7 +3,7 @@ import { safeCreateIcons, getFileIcon } from './utils.js';
 import { api } from './auth.js';
 import { populateCustomDropdown } from './ui.js';
 import { _populateRecentVaultFilter } from './config.js';
-import { el, icon, getVaultIcon, smallBadge } from './viewer.js';
+import { el, icon, getVaultIcon, smallBadge, attachTreeItemActionButton, attachTreeItemLongPress } from './viewer.js';
 
 // ---------------------------------------------------------------------------
 // Vault context switching
diff --git a/frontend/js/viewer.js b/frontend/js/viewer.js
index 1bde725..dc846d1 100644
--- a/frontend/js/viewer.js
+++ b/frontend/js/viewer.js
@@ -647,7 +647,7 @@ function getContextMenuPositionFromElement(target) {
   };
 }
 
-function attachTreeItemActionButton(itemEl, vault, path, type, isReadonly) {
+export function attachTreeItemActionButton(itemEl, vault, path, type, isReadonly) {
   const button = document.createElement("button");
   button.type = "button";
   button.className = "tree-item-action-btn";
@@ -668,7 +668,7 @@ function attachTreeItemActionButton(itemEl, vault, path, type, isReadonly) {
   }, 0);
 }
 
-function attachTreeItemLongPress(itemEl, getMenuData) {
+export function attachTreeItemLongPress(itemEl, getMenuData) {
   let pressTimer = null;
   let pressHandled = false;
   let startX = 0;