I've written python base classes with something like this: class MyObjectManager( CatalogAware, ObjectManager ): pass class MyClass( CatalogAware ): contents=MyObjectManager() ... In a ZClass that subclasses MyClass I create a view (amongst others) that points to a dtml method like this: <dtml-with contents><dtml-var manage_main></dtml-with> I can access the view on an instance of the ZClass, but when I do so, I lose all the management tabs for the MyClass ZClass and none of the links are correct in that they all point to ".../MyInstance/manage..." intead of ".../MyInstance/contents/manage...". There's plainly a lot I'm not getting here, and I'm not at all sure where to go from here. Thanks for your help. ----------------------------------------------------------------- | Ross Patterson rossp@cats.ucsc.edu | | Programmer/Analyst (831)459-2792 | | Physical Planning & Construction Fax:(831)423-7436 | | UC Santa Cruz http:www2.ucsc.edu/ppc | -----------------------------------------------------------------