Synchronization with the Forerunner 965

While doing workouts on the home trainer (connected to the Edge 1050), the 965 watch sometimes gives me a MOVE! warning, According to the watch, I'm not moving enough.
Hmmm.

My Forerunner 965 watch is typically connected to my Headset.

The music widget on the Edge is only able to control music on the phone, not on the watch.
Would be nice to have both possibilities.