diff -r 2990223a5b7f -r 9139536eab90 src/pyams_content/component/extfile/zmi/__init__.py
--- a/src/pyams_content/component/extfile/zmi/__init__.py	Sun Nov 26 09:50:28 2017 +0100
+++ b/src/pyams_content/component/extfile/zmi/__init__.py	Sun Nov 26 09:51:48 2017 +0100
@@ -127,11 +127,13 @@
             counter = ExtFilesCounter(self.context, self.request, self, None)
             counter.update()
             output.setdefault('events', []).append({
-                'event': 'PyAMS_content.changed_item',
-                'options': {'handler': 'PyAMS_content.paragraphs.updateMarkers',
-                            'object_name': self.context.__name__,
-                            'marker_type': 'extfiles',
-                            'marker_tag': counter.render()}
+                'event': 'myams.refresh',
+                'options': {
+                    'handler': 'PyAMS_content.paragraphs.updateMarkers',
+                    'object_name': self.context.__name__,
+                    'marker_type': 'extfiles',
+                    'marker_tag': counter.render()
+                }
             })
         return output
 
@@ -229,11 +231,13 @@
             counter = ExtImagesCounter(self.context, self.request, self, None)
             counter.update()
             output.setdefault('events', []).append({
-                'event': 'PyAMS_content.changed_item',
-                'options': {'handler': 'PyAMS_content.paragraphs.updateMarkers',
-                            'object_name': self.context.__name__,
-                            'marker_type': 'extimages',
-                            'marker_tag': counter.render()}
+                'event': 'myams.refresh',
+                'options': {
+                    'handler': 'PyAMS_content.paragraphs.updateMarkers',
+                    'object_name': self.context.__name__,
+                    'marker_type': 'extimages',
+                    'marker_tag': counter.render()
+                }
             })
         return output
 
@@ -323,11 +327,13 @@
             counter = ExtVideosCounter(self.context, self.request, self, None)
             counter.update()
             output.setdefault('events', []).append({
-                'event': 'PyAMS_content.changed_item',
-                'options': {'handler': 'PyAMS_content.paragraphs.updateMarkers',
-                            'object_name': self.context.__name__,
-                            'marker_type': 'extvideos',
-                            'marker_tag': counter.render()}
+                'event': 'myams.refresh',
+                'options': {
+                    'handler': 'PyAMS_content.paragraphs.updateMarkers',
+                    'object_name': self.context.__name__,
+                    'marker_type': 'extvideos',
+                    'marker_tag': counter.render()
+                }
             })
         return output
 
@@ -416,11 +422,13 @@
             counter = ExtAudiosCounter(self.context, self.request, self, None)
             counter.update()
             output.setdefault('events', []).append({
-                'event': 'PyAMS_content.changed_item',
-                'options': {'handler': 'PyAMS_content.paragraphs.updateMarkers',
-                            'object_name': self.context.__name__,
-                            'marker_type': 'extaudios',
-                            'marker_tag': counter.render()}
+                'event': 'myams.refresh',
+                'options': {
+                    'handler': 'PyAMS_content.paragraphs.updateMarkers',
+                    'object_name': self.context.__name__,
+                    'marker_type': 'extaudios',
+                    'marker_tag': counter.render()
+                }
             })
         return output