Hi! Implementing the OrderedObjectManager proposal, we fleshed it out and modified it a bit. I made an initial checkin on a branch which reflects our current thinking. So this is your chance to discuss the changes before we merge it into the trunk. The code: yuppie-ordersupport-branch (Creating the branch went wrong a bit. Please just checkout lib/python/AccessControl, lib/python/OFS and lib/python/Products/OFSP.) The original proposal: <http://dev.zope.org/Wikis/DevSite/Proposals/OrderedObjectManager> Some key issues: 1.) OrderSupport is a mixin class for ObjectManager. (using the CopySupport / FindSupport / UndoSupport pattern) 2.) 'Folder (Ordered)' is a 'Folder' with OrderSupport. (using the 'Script (Python)' pattern for the meta_type to avoid a name clash with the existing OrderedFolder product or names like OrderedFolderLite) 3.) For the ZMI, we use the same 'main.dtml' as the ObjectManager. This way we avoid redundant code and make it easier for products that need to change the 'main.dtml'. If there are no objections, I'm going to land this soon. Cheers, Yuppie PS: For API Help, we have to copy (!) the Interface to OFSP/help? Right?