diff --git a/src/bundle/Resources/public/js/scripts/sidebar/extra.actions.js b/src/bundle/Resources/public/js/scripts/sidebar/extra.actions.js
index 9c2eee6d9a..e531ccf33c 100644
--- a/src/bundle/Resources/public/js/scripts/sidebar/extra.actions.js
+++ b/src/bundle/Resources/public/js/scripts/sidebar/extra.actions.js
@@ -73,6 +73,19 @@ import { getInstance } from '@ibexa-admin-ui/src/bundle/Resources/public/js/scri
         removeBackdrop();
         restoreInitialFormData(actions);
     };
+    const dispatchAfterOpenEvent = (actions) => {
+        actions.addEventListener(
+            'transitionend',
+            (event) => {
+                if (event.propertyName !== 'transform') {
+                    return;
+                }
+
+                doc.body.dispatchEvent(new CustomEvent('ibexa-extra-actions:after-open'));
+            },
+            { once: true },
+        );
+    };
     const toggleExtraActionsWidget = (widgetData) => {
         const actions = doc.querySelector(`.ibexa-extra-actions[data-actions="${widgetData.actions}"]`);
 
@@ -96,6 +109,7 @@ import { getInstance } from '@ibexa-admin-ui/src/bundle/Resources/public/js/scri
         }
 
         if (!actions.classList.contains(CLASS_HIDDEN)) {
+            dispatchAfterOpenEvent(actions);
             backdrop.show();
             doc.body.addEventListener('click', detectClickOutside, false);
             doc.body.classList.add('ibexa-scroll-disabled');
diff --git a/src/bundle/Resources/views/themes/admin/ui/layout.html.twig b/src/bundle/Resources/views/themes/admin/ui/layout.html.twig
index 6811056350..a72281f2d7 100644
--- a/src/bundle/Resources/views/themes/admin/ui/layout.html.twig
+++ b/src/bundle/Resources/views/themes/admin/ui/layout.html.twig
@@ -205,6 +205,7 @@
                         </div>
                     </div>
                 {% endblock %}
+                {{ ibexa_twig_component_group('admin-ui-content-column-end') }}
             </main>
         {% endblock %}