You should be able to deselect stats in the shop

You know how if you click on a stat once in the shop, the shop gives you all items containing that stat? You should be able to click on it again to make the shop instead exclude all items with that stat. Click on it a third time, and it goes back to blank and the shop shows items regardless of that stat. It seems like a really simple feature to build right into the shop's search and categorization functions, and has quite a few feasible uses.

For example:

• Deselecting mana if my champion doesn't use mana
• Deselecting AD or AP if my champion primarily builds one of those stats or the other
• Deselecting CDR, Attack Speed, or Critical Strike Chance if I'm close to or at their caps

I think it would be great for reducing visual clutter and streamlining a given player's shopping experience.