I do not quite understand how Zope traverses a tree. I created "ZooExhibit" Z Class within ZooExhibit factory, and "ExhibitProperties" prop.sheet within that class, with an "animal" property. I made association between "Edit" name and propertysheets/ExhibitProperties/manage. I made an instance of the Z Class called "Rabbit" within Zoo folder. But when I access http://Zoo/Rabbit/propertysheets/ExhibitProperties/animal, I get an error "Missing doc string". Perhaps a similar problem: I created "BWE" product/Z Class, and on the Methods tab I created "pop" folder with a default "index_html". I created an instance of that Z Class called "BWE_inst" within a "BWE" folder. I can access "http://BWE/BWE_inst", but when I try "http://BWE/BWE_inst/pop", browser gives me Authorization failed. -- Milos