[Zope] Setting permission when installing a ZClass product

[Didier Georgieff]

Hello,

I've made a ZClass product, with some permissions.
When you add the product the permissions are there but without 
any default setup for the roles.

Is there a way to have a 'setup' method when installing a Zclass 
product (i know i can do that with a method by hand, but i want to 
avoid ask the product user to do it).

Any idea about doing that the smart way ?

Thanks.