Electronic & Hydraulic Shifting (Di2, Ui2, customisations)

However, the new box is designed to go under the stem, and it's only got one button on to clear the "fuck I've crashed" setting which makes the rear mech hide in an impact.

Where does it go?

I've put two rear mechs through my rear wheel in as many years. So I would'nt want it going closer to the wheel.