That would be some amazing firmware! You do have a point, though with the EX Comp. I set it on C and use the front dial. No need for the dial per se. I would prefer to keep the dial but be programmable: white balance, ISO, film sim, anything that works in a range.
I would like to be able to label my Custom presets.
Fix the quirky Auto ISO presets issue,
Most of what the OP said. I’m pretty happy with the way it is, though!