Spent some time today to figure out the values for the light functions. I used a Train-O-Matic Next18 decoder.
Front white lights: 5
Front red lights: 6
Rear red lights: 9
Rear white light: 10
Interior lights: 16
Cabine lights rear: 33
Cabine lights front: 34
Cabine lights front + rear: 35
So weird that they are not multiples, as in 2, 4, 8, 16 etc.