I would like to send a Actuator command to activate a magnetic gripper from Mavros, without sending the Pitch, yaw, roll. There is a
group_mix enum in the Mavlink message (as well as in Mavros) but it looks not implemented in the PX4 Firmware.
Mavros message : http://docs.ros.org/api/mavros_msgs/html/msg/ActuatorControl.html
What is the correct way to do control AUX channels?