Snapping heading to path which is 90 degrees from approach heading

I'm trying to figure out if there is a method within dronlink to slowly rotate the drone from approach heading to the path heading which is 90 degrees to the right.

I have the plan  settings to rotation of 5 degrees per second; that holds for all motions except from approach to path.   A rotation component also is restricted to 5 degrees per second, and works correctly in flight.

I know I can do my own work around so I'm asking if I'm missing some parameter or command within dronelink which controls rotation from approach to path.