So far at least, its:

1. Blank
2. Active Seat for driver
3. Park Distance Control
4. Dynamic Traction Control off
5. Hill Descent Control
6. Open Tailgate
7. Blank
8. Active seat for passenger
9. Blank

Of course if you dont order active seat, you get two larger blanks on the left and right side of the core 4 middle buttons.

http://www.realoem.com/bmw/showparts...10&hg=61&fg=35