Please allow us to specify front or rear light control for changing the light mode with the di2 buttons. At the moment I have 2 options. 1) turn on/Off. 2) change mode.... however this does the whole network.
If I am riding with a front and rear light, I may want to just switch the rear to solid, and leave the front in the same mode. If running a front light, I may want to change it from high to low or low to high at night, without changing the rear light. Also, change mode just changes from flash to solid. No option to change from high to low.
This could be a killer feature. As it is, its not useful