Combine course lock and POI behavior?

[dwallersv]

Here's what I'd like to do, wonder if there is any way to set things up to make this work.

I want to take a shot focused on the subject as the aircraft flies by on a straight course. I can manually pan the camera myself with Course Lock.

However, I'd like to do this at the max speed under Sport Mode -- 45 mph. I'm just not very good at controlling the yaw of the aircraft to get this shot really smooth.

Any way to do this automatically?

 

[dwallersv]

Found the solution: Litchi.

Litchi does this with the "Focus" mode. So I bought for $30. Going out to test/play with it right now.

Still can't tell if there is any way to do this with the current crop of DJI GO apps, but I don't think so. Here's a picture from the Litchi help page that diagrams PRECISELY what I want to do... maybe this will be helpful to others: