- stitched in manage_interfaces from Five

doc/CHANGES.txt

@@ -26,6 +26,11 @@ Zope Changes
 
     Features added
 
+      - interfaces: Added 'Interfaces' tab to basic core objects.
+        This is a Five feature and only available if the classes are made
+        five:traversable. It allows to inspect interfaces and to assign
+        marker interfaces through the ZMI.
+
       - webdav: Added support for the z3 WriteLock interface.
         It is no longer necessary to have the WriteLockInterface in the
         __implements__ list of lockable objects. All classes inheriting from

lib/python/OFS/SimpleItem.py

@@ -122,6 +122,8 @@ class Item(Base, Resource, CopySource, App.Management.Tabs, Traversable,
     manage_options=(
         App.Undo.UndoSupport.manage_options
         +AccessControl.Owned.Owned.manage_options
+        +({'label': 'Interfaces',
+           'action': 'manage_interfaces'},)
         )
 
     # Attributes that must be acquired