Deploy flaps in Auto BEFORE autolanding waypoint

I would like to “support” landing before the autolanding waypoint is initiated. As I could not see that I can set flaps by a waypoint command I wonder if I can use a workaround like that:

  1. activating autoflaps
  2. changing speed by a waypoint command where the desired speed is slightly below the activation speed of the autoflaps.

Is this a usefull way to go or do you have other suggestions ?

Thanks in advance!

Happy flying