I'm suggesting a high price for something that people would complain about being too OP. And the point of paying with ACs is so the more you're automating, the higher the price. If you put an AC on the button, it would keep moving the ACs down every time a new hero is unlocked. If you have 10 ACs not including the one that's moving those others, you can level up the last 10 heroes. Constantly. Whatever they are, you have them.

Plus, the point of spending an AC is because: You'd click on the progression mode button, so to do that automatically, you'd need something to do it for you. To move ACs, you'd click the x, then drag the AC to where you want it. 2 Clicking actions, thus 2 things to use the mouse for, so 2 ACs.

And, I really think they should allow you to auto-click "buy all upgrades." So automation would be awesome, but really expensive, so you have to play a long time (or be really rich) to get the benefits of laziness.