Nested Server Roles

I'd like to be able to "nest" server roles... such that @leader-guild 1, @leader-guild 2, @leader-guild 3, etc. could be grouped as a seperate role such as "All Leaders". This would make assigning roles to channels so much easier in that if you have channels that all leaders need access to, you could assign 1 role (the nested one All Leaders) vs having to assign the individual role(s) and permissions for each one.