I have created an AcademicPublication product which consists of a folderish container class and then catalog-aware classes for journals, conference proceedings, books, etc. Since we only expect to have a few thousand entries that don't change that frequently, I went for this option over keeping the data in a backend DB accessed via ZSQL. It works beautifully except for one annoyance that transcends my specific example. If someone with management access accidentally "clicks" on the container folder, Zope spends ages building a right-pane management view of all umpteen thousand instances. In the same way that ZCatalog displays only a select number of instances at one time, I wonder if something similar should not be added to the regular folder view? Cheers, Darran.