A champion select idea

We all experienced a situation where we find our self in a champion select unable to find a champ we are looking for, while time is running out and we usually end up picking wrong or often a random champion in order not to dodge the game. So i thought we could make it easier if we could split all champs by roles into Top/Jungle/Mid/ADC/Support, and when we click on one of this categories we can see all champs that we have previously put in. It would be similar to items sets we already have. It should work something like this: you go to your profile, Champions and above champions you would have like 5 little folders named Top/Jungle/Mid/ADC/Support and you could drag champs you want in each category. And when you are in champion select, next to " Search for champion name " you would have those 5 folders with champions. Sometimes while in champ select i really don't know what to play, but having champions sorted like this would help me and probably some of you for sure :)