Dynamic Queue and Fill

So first off, I'd like to say that overall I actually like the dynamic queue and the roles system.

My main issue I run into is that, especially when I can be with a team who picks their best roles, I wish I could narrow my "Fill" choice down. Often I'd love to play any role, but to get that I need to pick top mid bot or jung. If I pick fill 9/10 times I'll be support. And that's cool. Sometimes. But if I say "fill" I'm going to be support. Looking at other complaints people have, I wish we could just put a tier list of role preferences in.

Priority 1- Top, Bot Priority 2- Support, Jung Priority 3- Mid

For example. But people don't have to fill out every role. They just have to pick at least 2. But could pick 4. Or say all are priority 1 for the fill option.

Just a possible suggestion. I love playing fill in general, but it bums me out that I'd like to use it as a random button (or at least a weighted random button) but in practice I end up with 2 ways to pick support.