I thought this is announced as simulation, so bring back the radar to every helicopter. Taken away the radar and give it a compass is not an option!

This is an absolutely realistic behaviour of a boat throttle. Once you move it to a specific position it will stay there, even if you leave the drivers seat and go somwhere else. You can avoid this with a quickstop, but this is another story.

I really miss that feature. Any news on that?

seems to be realted to ID # 0001344 (at least this issue is mentioned there as well in the notes)