I want some pictures so I moved to r87 and began to test the servo_set and servo_trigger navigation commands.
The example you suggested in this post viewtopic.php?f=4&t=275#p1245 did not work out of the box (the servo moved very briefly) and I've thought that maybe the channel 5 is in control loop and tried with channel 6. It worked .
Now my question is if it is possible with the navigation scripting language to trigger the servo every x seconds, while flying between two waypoints.