[Zope] problem creating ZClasses inside ZClasses

Hi there, I know we had this thread already a few weeks ago - and a possible solution to my problem: When I try to create a ZClass inside another existing ZClass, the inner ZClass does not show up in the global product add-list. And also the inner ZClass does not appear in the list of possible subobjects. (The Zope developers guide tells me it should automatically). I searched the mailing list at eGroups, but I was not able to find the thread. Does anybody remember this discussion or he name of the thread? Thanks in advance, Andy Pahne ap@net22.net