Mainrole / siderole button

Now this might be a terrible Idea, but what about an general Button besides every role saying "mainrole" or "Siderole" or "minor siderole" or something.

Now, admittedly in general I made the experience that the more "irrelevant" a role seems, the less people actually audition for it, because everyone wants to be the big fish in the pond. However I feel like that would give a Project more of an internal structure and just generally look better?

But again, I am concerned it might give sideroles a whooping downgrade in Audition numbers. <_<

But I like it conceptually. xD