Make more roles than primary an secondary (optional roles). Make an option for "fill except..."

If we get 3 options instead of 2 (making the third one optional for people who only main 2 roles) queues will be faster. Also, lets say im in a mood for anything but top. If i put fill i might get top and that's when we get the trolls "I don't want to be top!" then why did you put it in your options? "i put fill!" so i think there should be an option to put fill except for a role.