It would be absolutely awesome if you could implement like a "power grid" mode button that when you click it. Shows the percentage of power spread out through the heat exchangers, so you can see that the generator that is 2 blocks away from the reactor receives 80% power, and one that is 7 blocks away only receive 15% power, or something :)
I would absolutely love a "Total money made per second" (combining all your booths' money/s together, because doing it on a calculator all the time SUCKS!)