Originally Posted by
UnfilteredDregs
I had thought about that... It can be easily solved with an alternate switch. A bypass.
You can already use the e-tube software to change the function of the four buttons in a pair of shifters. Just a matter of a company deciding they want the functionality and writing the code. You could use the climbing shifters near the stem, or use one of the brake lever buttons for the big ring (as mentioned earlier, one button could handle that since it's a two position deal) and use the remaining button to match the rear gearing depending on if you just shifted to or from one of the front rings.