DOM Hot Key Order Quanity

We should have a hot key available for changing the order quantity. As I trader, my main goal with the first contract is to get myself positive and take off some risk. I can’t do that well as a scalper if my mouse is all over the place, manually editing the contract size. Please fix this where we could program a hot key for a certain quantity. For example, I enter with 3 lots, it moves up one point. I am able to program and hotkey “shift + 1” for a 1 lot size change at the top. That way I can look to exit 1/3 of my size via a limit or market order.