Is it possible to add a DO_CHANGE_SPEED into the automatic fixed wing landing pattern in QGroundControl?
Do you mean after the Loiter to Alt? If before you can do this by adding it manually.
Ideally after the loiter, but if we add it before the loiter it will come before the DO_LAND_ START and get skipped if/when the plane returns home.
OK. Can you put in a feature request issue into GitHub?