Hi, When ObjectManager is added as a Base Class when creating ZClass, the new ZClass has a "Subobjects" tab. If Image, Folder, or other "stock" object types are added to the "Subobjects" list, they are then offered in ZMI for each instance of the ZClass. But if other defined ZClasses are added to the "Subobjects" list of the ZClass, they are NOT offered in ZMI. Is that intentional? Can I change this behaviour? -- Milos Prudek