Personal Champion Line-up

In champion selection, there should be an option to select to view only champions that you've previously selected as your "line up" It would be awesome to be able to have the 10/20 champions that i play consistently ready to pick from if i wanted to, i imagine most others would appreciate this as well? it'd be next to the marksmen/mage/tank/fighter thingo

Basically a suggestion to riot, though i have no idea where to send it because I'm lazy .