Nope, not allowed anymore in the EU to control your flaps manually. They are now controlled automatically by the car and open at certain RPM/throttle input depending on the drive mode as well. TomE explained the behavior of the valves in his writing about the different drive modes.
Edit: here's the link: Drive Modes explained
Anyways I guess there will be an easy mod to make them manually controllable.
I would think adding a button to manually control them will be relatively simple. It's nice that it comes from the factory with it built-in, instead of having to add your own flaps.