I'm currently trying to create a ZClass (based on ObjectManager) from a Folder I've got. This folder contains a ZCatalog named Catalog. If I copy and paste all existing methods and objects into my ZClass, do what must be done (adapt the addForm and add method, define a propertysheet, set the Views, etc...), and create an instance of my new ZClass somewhere it works but I can't view my instance: if I choose View I've got an Unauthorized error about Catalog. If I create the same ZClass without including the Catalog, then instanciate the ZClass, then add the Catalog manually to the instance, then it works fine ! Please could someone explain me ? thanks in advance. Jerome ALET - alet@unice.fr - http://cortex.unice.fr/~jerome Faculte de Medecine de Nice - http://noe.unice.fr - Tel: 04 93 37 76 30 28 Avenue de Valombrose - 06107 NICE Cedex 2 - FRANCE