[Zope] calling scripts from scripts and permission

Hi I would like to call script (the one called 'Script (python)', it should manage the properties of a Folder) from another that have a proxy of Manager My guess was that in this way the first one would be executed with Manager role, but actually I was wrong... it complain that I'm not "allowed to access 'manage_changeProperties' in this context" Am I doing something weird, or is this the way it should work? P.S. the same (first) script, called on the same Folder object whe the authenticated user is the owner of the Folder, works thanks massimo