You can get both if you derive from ObjectManager and then use the "Subobjects" tab in the Zope management interface. "Stefan H. Holek" <stefan@epy.co.at> writes:

Deriving from OFS:Folder will only give you global meta types in the Addbox, whereas deriving from ObjectManager will only give you the included ZClasses. I have not yet found a way to have both ;(