I just observed something which I really wouldn't have expected. If I set a property on an object, via a PropertySheet, I then cannot add an object of the same id at the same level (and vice-versa). Say I have a folder, to which I add a property named 'draft'. Then I try to add any object (Page Template, whatever) with an id of 'draft' inside the folder. This fails with OFS.ObjectManager.checkValidId complaining that the id is already in use. Is this how it's supposed to work? This is on Zope 2.7.3-0, and I just verified it also is the case on Zope 2.7.6 final. Thanks in advance, Rob __________________________________ Discover Yahoo! Get on-the-go sports scores, stock quotes, news and more. Check it out! http://discover.yahoo.com/mobile.html