Using the SmartObjects tab in the add role item to assign users to roles

Hi

I once read that users can be assigned from sharepoint groups to the destination rule; it seems that it didnt worrk for me.

Now I want to Get/Assign users from SHAREPOINT groups and assign them to roles; i had to to this due to the fact that the add role item in the Management console only adds users/Groups in the Active Directory.

The other tab in the add role item is smartobjects; I just want to know how it is used and how to add a smartobject to it.and how to get users from sharepoint groups and assin them to a certain role.