Hi, I made a container ZClass (called "Main") inheriting from ZObjectManager I made another ZClass (called "Sub") "Main" objects may contain only "Sub" objects that have no sense when outside of a "Main" object. But the "Add" drop box in the ZMI folder content panel shows "Sub" meta_type. And "Sub" objects in a folder have no sense. How can I remove this "Sub" from the "Add" drop box ? Thanks in advance. --Gilles