Undo Button

TFT badly needs a button or hotkey that will instantly undo the last action similar to how you can undo purchases in the shop. Maybe make it so it becomes impossible to undo previous actions once a round begins, similar to how you can't undo shop purchases once you leave the base. The ability to undo an action would be huge, especially for those times when you accidentally sell a unit you didn't want to sell, or when you combine an item on to a champion you forgot already had an item and it makes an unintended and potentially bad item, or even when you miss a champion in the pool and need to go back to the last batch of champions. If that last one is implemented, I do think it should be limited to perhaps once a round, but it needs to happen in some manner. I'm tired of losing games because I hit the wrong button or something. Please, if you agree with this in any way, upvote this so we can let them know we want this.