Create a quick-buy tab for items

Above the item slots, add 1-3 slots for quick buy items. This could be something really useful for getting back into the lane faster, because instead of trying to find an item while you are in the base, you could drop it into your quick buy whenever you buy a component for it so that later you can just double tap it when you B next and be on your way.

This would make the support life a smidge better because you could just pick up your wards/health pots instantly instead of going through the shop.

I know, pressing P is pretty easy too, but I think once it is implemented it'll be useful for everyone.