[Zope] Adding a permission to an ObjectManager derived ZCLass

I've got an ObjectManager and Folder derived ZClass that contains instances of a secind rather simple ZClass. It works fine, but I am trying to add a permission to the container ZClass that will let a user with that permission view the management interface (the 'Contents' tab) of the container and add, edit, or delete the simple ZClass instances in the container. The container doesn't have any property sheets, but the simple ZClass does. Does anyone have a simple walkthrough of what I need to do? Michael Bernstein. P.S. I don't have a choice about using ZClasses here.