Here is the cabin as it appears in DCC mode:
Here, all you have to do is turn the wheel at the bottom right of the screen (DCC manipulator). Depending on your speed, the programme manages the movements of the throttle and gear levers (blue legend).
The controls for the lights, windscreen wipers and dashboard lighting are inactive in this mode. The script manages these features based on the time or weather in the game.
Please note that if you slow down to 10 km/h, the script will put the gear lever in neutral: if you want to accelerate again, you will need to stop the train completely so that the programme can reposition the lever in first gear.