Queue- Add a Random and keep Fill option

I for one like to play a variety of roles, so the queue system kind of irks me that I have to choose only two. Generally, I would fill in whatever lobby I was in for any role that I haven't just played two or three straight times. The queue system is necessary though, and I accept that.

My issue is the choices. Right now, fill is basically support. I understand the functionality: If you want the quickest possible game, you go to fill to be placed into a queue that has any open spot in it. And support being the least popular role is the open spot 85% of the time. And that's fine, fill is serving it's function.

Can we also add a random choice as well? This would just give you an equal 20% of each role and the RNG chooses for you for an equal chance of any role. This gives us an option that doesn't lock us into 1 of 2 lanes OR put us in support 85% of the time.