I would imagine if Storm32 gimbals can be controlled than so can these hopefully.
The documentation you linked provides a good description of how to setup the software but i imagine the hardware instructions would be different - as in which PWM pins would i plug in the gimbal controller to? If I choose the pins, do the pin numbers in Mission Planner match the pins on the Navio2?
Lastly, would it be difficult to create a MAVROS node that controls the camera gimbal? My goal is to publish to this node over the telemetry module from my GCS (using matlab) to make the camera move.