Role Selection for Matchmaking

I think this has been commented on before, but I wanted to bring it up again. Would it be possible to add the option of selecting more than two roles, but not just selecting them all (fill). Or even add the option to make your two roles (or potentially more if added) equal priority instead of primary and secondary. I know this makes it a lot more complex to select roles, but you could leave the role selection how it is and just have an option on the side for those who want a more advanced role selection. You could also even add in this advanced menu the option for it to remember your previously picked roles so that you didn't have to click all the options every time. I assume this could also slightly help matchmaking as people are giving the option to be put in more lanes.