Riot Add a Third Role to Queue

Lately I have been playing a lot of League and have encountered a dilemma that there sometimes i want to have the option to play a different role. Lets say this I queue up for solo queue and put in Mid primary and Top secondary but then i come to the realization that along with those two roles i also want to play bot as well meaning that I could put in bot but that still takes away Mid or Top. Well i could put in the fill option but that opens a can of worms. SO what I'm proposing is an OPTIONAL third slot. Idk its just a thought