--- a/src/pyams_content/component/keynumber/__init__.py	Mon Jun 25 10:09:38 2018 +0200
+++ b/src/pyams_content/component/keynumber/__init__.py	Mon Jun 25 16:03:54 2018 +0200
@@ -10,7 +10,6 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
-
 __docformat__ = 'restructuredtext'
 
 
@@ -157,6 +156,16 @@
                                   name='++keynumbers++')
 
 
+@adapter_config(context=IKeyNumberContainer, provides=IFormContextPermissionChecker)
+class KeyNumberContainerPermissionChecker(ContextAdapter):
+    """Key number container permission checker"""
+
+    @property
+    def edit_permission(self):
+        content = get_parent(self.context, IKeyNumberContainerTarget)
+        return IFormContextPermissionChecker(content).edit_permission
+
+
 @adapter_config(name='keynumbers', context=IKeyNumberContainerTarget, provides=ITraversable)
 class KeyNumberContainerNamespace(ContextAdapter):
     """Key numbers container ++keynumbers++ namespace"""