Casey Duncan wrote:

Right. This technique should give you a standard property sheet managment interface just like standard Zope objects have. So long as a user has the "Manage properties" permission, they should be able to manipulate the properties for each instance.

Nice thing, I (almost) got it to work! I forgot to inherit from ODS:Folder, I only inherited from ZObjectManager, that's why I didn't see the add button in the property screen. But now I've got the next problem: I want users only to add a special second ZClass within my described ZClass. But, by inheriting from ODS:Folder, users can add anything they wish! The subobjects tab doesn't have any effect. No "kind of things" is selected, but because of ODS:Folder, still everything is in the add list. I tried to play a little with permissions, but didn't find a solution. Again, can somebody help? Thanks to you all! -- Lars Heber, mailto:Lars.Heber@t-systems.de T-Systems, debis Systemhaus GEI GmbH, Geschaeftsstelle Sachsen