[Zope-dev] Picklists in forms (Newbie questions)

Hello, I would like to know how -in the Zope-dev way of doing- you create a picklist field in which a user can make a choice. To be more precise, I would like 2 scenarios: 1. Picklist of instances of an object, for example, of areas_of_interest (MATHEMATICS:ASTROLOGY:LITERATURE:ART). 2. Picklist of different objects such as (USERPROFILE:WORK:FAMILY:AREAS_OF_INTEREST) In this second case, the choice made would, for example, open a new form (DTML method/document ?) containing the properties of the object. Maybe you could redirect me to someplace in the documentation where I can find these concepts ? Maybe there are existing products implementing this. Thanks & All the best Kamon