Hello Zope fellows, after digging through tons of email in the archives I still haven't found a solution for my problem: Following the Zclasses tutorial on zope.org I created a product and created a class inside that product. When I tried to create an internal class as decribed in the section "Classes inside Classes", I was able to create an item of my new product, and could also create objects of my new zclass. But the INNER class does not appear in the "Available Objects" list for objects of the outer class :( Another problem I encountered is that I could add Objects to the "subobjects" list of my zclass (which inherits from ObjectManager, of course), but could not _remove_ objects. I would really like to do that, so that the "Available Objects" list is not as crowded in inner classes as it is globally. I only managed items to appear twice in the "Available Objects" list, and that was definitely not what I intended :) TIA, mgrabmue -- Pinuts media+science GmbH http://www.pinuts.de Martin Grabmueller mailto:grabmueller@pinuts.de Potsdamer Str. 96 voice: +49 30 590090324 D-10785 Berlin fax: +49 30 590090390