[Zope-CMF] How to attach own properties to existing portal types (like metadata does)?

[Dieter Maurer]

=?iso-8859-1?Q?Gr=E9goire?= Weber writes:
 > ... adding additional data to objects ...
 > Does someone have any pointers where to look, where to find 
 > examples, which interface to implement to attach such properties, 
 > etc.?
Look at the "Discussion" Tool, for example.


Dieter