Community Auth: ACL and groups/roles

Considering using Community Auth for an upcoming project, and wondering:  Is there any way to assign ACLs to a group or a role?  So that making a person a member of a given group (or role) automatically grants them the ACL?

This project will have a lot of overlapping user groups with various permissions, so this seems a convenient way to organize things.

I've never used Community Auth before, and can't find and answer to this in the docs.  If it's already been answered somewhere, I'd appreciate a pointer.

Thanks.