[Zope] Creating new permissions -- outside a Product ?

[Heimo Laukkanen]

I am creating a site, where I use mostly standard-components, 
DTML-methods, Zwiki, Kubes etc. I manage users by roles, but would like 
to create additional permissions.

Is it possible to create permission outside any product -- or should I 
create a dummy-product that introduces these new permissions I want to 
use with my dtml-methods and PythonScripts?

-huima