Custom Champion Filter (for champ select)

Too often in champ select do I find myself struggling to find a champion for a certain roll, or just a champion that I want to play. I think that we should be able to create custom champion pools of our own that can be searched for in champ select with custom key words or labels created for whatever lane, roll, etc that you wish to categorize them as, created almost like custom item sets in a way. Yes, I know there is already a champion category feature similar to this that can be used to sort champions by role (marksman, assassin, mage, fighter, etc.) but I think it would be cool for each individual to be able to customize their own and select the champions they want to see (or don't want to see) within that category to pick (or even ban). I think this could also be useful for meta shifts within picks and bans. I believe this is a helpful and easily obtainable concept to implement, and I would love to see it in game. I'd love to see what the community thinks and hear some feedback.