Jan,
I tried to use the DR400 Robin to fly a flight plan using the CoPilot. I encountered some problems.
1. I have no control of the Altitude that CoPilot chooses. I want to fly at 2,000 ft, it wants to fly at 6,000 feet so I can't use the follow flight plan feature.
2. The choice of power setting is either 100% or 23%. Nothing in-between is possible using the Speed icons.