Custom champion-groups in champselect

Hi,

(I hope this is the right board - this is my first posting :P )

Today I was playing a few games and I realized how much time I lose when I search for specific champions. So I got the idea to let you group your champions. How cooll would it be if you can create groups and add your champions to them the same way you can add items to your item-sets. Then you only need to click on your group like "mid-lane" and you get all your champs you play there. I don't know if it's possible to add buttons with the current UI but for me it would be fine to type the groups into the search or select one from a drop down menu.

What do you guys think about this?