Hi all,
if I understand well the answer to my questions is no for both, but I would like to be sure...

1) there is any way to state that a category B is a sub-category of another category A and that the attributes defined in the template of A are automatically inherited in the template of B.

2) there is any way to state that a certain attribute (or relation) can only be associated to items of certain categories?

thanks
    Ivan