Got mine installed now, I can say it works quite well.
This is all I have set up now:
Basically, M1/M2 tap will toggle between M Road and M Sport mode, changing the display. It's changed my usage a bit since to not get the system confused, I have to go back into comfort/non-M mode to get the screen to properly stay in M Sport mode if I move from M1 to M2, or vice versa.
I have "TEL touch" set up for a "launch control mode" since I have M1 in a basic sport+ mode, my M2 mode gives me 2WD w/ MDP level 6, so I made a different one for 4WD Sport/MDM to get me a quick LC mode. Works quite well.
canDO_Stef Would be good if the module had a way to only enter M Sport mode if M1/M2 is active, I can get rid of this toggle. As of now, I can't figure out a way other than how I have it to get out of M Sport mode if I want to deactivate M1/M2 mode.