[Zope-dev] Adding zclasses to subfolders

I am trying to add a zclass programmatically to a subfolder in another zclass - I've checked the archives and documentation, and haven't been able to figure this out. If I am inside ZClassA and want to create a new instance of ZClassB inside the folder 'bar' which is in ZClassA, it seems you would do something like this (from inside ZClassA): <dtml-with "manage_addProduct['DocumentAppProduct']"> <dtml-call "bar.ZClassB_add(_.None, _, NoRedir=1)"> </dtml-with> but I get an unauthorized error saying I don't have access to 'bar', even though the calling method has a manager proxy role.