Galactic Bazaar - QOL improvement

I've asked for this before.  Could you please give us the ability to use the mouse wheel or */- arrows to change # of items to buy/sell in the Galactic Bazaar like we can do when we're making a trade with an AI Civ.  Early game isn't too bad if you're only buying or selling under 10, but having to do 50 or more mouse clicks later in the game when making large tranactions it is a real pain.