[Suggestion] Ability to Bulk Buy - Shift + LMB to add +10

One thing that is a tad bit annoying is only able to increase the purchase amount one at a time.

It would be nice to add functionality to drastically increase the amount faster such as

Shift + Left Click to increase in increments of 10

Hold down the Arrow to slowly start increasing and then slowly start increasing the acceleration of which it increases

Having tabs on top that says 1 \ 10 \ 100  which increase accordingly when you press the arrow

There really are a lot of options and this would help greatly especially in things like Discover University robots and Cooking Spicy food.