[Cstef]

Hello someone here how to code the rear drive backup assistant ?
i am victim of chip components missing in the electric modules .
my car was delivered without iDrive touch screen and causing that the rear driving backup assistant button not showing on the lcd screen.
i have manage to buy second hand idrive touch screen , and managed it to code in to work .With bimmercode I activated the touchscreen
Only I don't know how to activate this rear drive backup assist with bimmercode .

i also find the mirrors with icam camera's and front grill wit icam.
i also have the gear selector with complete button setup and 3d ecu module . Biggest problem I encounter is the pin layout en wiring.

Who can help me out please pdf's and how to ?
kind regard stef.