Hi, I want to make ZNavigator CatalogAware and thought that I only had to put CatalogAware as the first class-parent like this: def ZNavigator ( CatalogAware , ... ): ... def NavItem ( CatalogAware , ...): ... Am I right or wrong ? I want to catalog every property into ZNavigator/NavItem which a index exists in my ZCatalog named Catalog in the root-folder. Do I need to programm a special code into a Class which should CatalogAware ? Regards, Dirk Datzert Rasselstein Hoesch GmbH Informatik / Anwendungsentwicklung D-56626 Andernach Koblenzer Strasse 141 http://www.rasselstein-hoesch.de Tel.: +49 (0) 2631 81-4595 Fax.: +49 (0) 2631 81-15-4595 mailto:Dirk.Datzert@rasselstein-hoesch.de