Could we assign our champions into groups?

In the "Champions" page in the client, it would be cool if we could assign champions that we own/don't own into a specific group, much like the item sets page, under any name we would like to call it. This group could later be accessed in champion select with the default group being "All champions". For example, I could have a group called "Supports" and I can see all the support champions I'd placed in the group, during champion select, and pick from those. Any champion can be placed in the group, but only those available to you will be shown. This is very useful when you get a large pool of champions and you're trying to pick one for a specific role.