Do_mount_control in SITL simulation

I’d like to test the do_mount_control waypoint to do something fairly simple - angle the gimbal down - say 45 degrees.

This is something I need to do for a real mission.

As I can best understand from the parameters for this command as listed in common.xml, I’d need to use the first parameter to set the pitch, and the seventh parameter - to either “3” for RC Targeting, or “2” for Mavlink Targeting. (not sure which)

Unfortunately, the units and positive/negative associations aren’t listed anywhere I can find for the “pitch” (first) parameter.

I thought this would be a perfect job the SITL simulator to try our different values (since it’s beyond me to read the source code) - but I’m unaware of anything in the HUD or Status tab that might indicate the gimbal status during a mission.

The closest thing I can find are three values in the status tab: gimballat, gimballng and GimbalPoint.

I ran a mission that has ROI waypoints with altitude assignment - but these values were never populated. I know the gimbal changes pitch for the ROI altitude, because I’ve flown it in real life.

Any idea on how I can view gimbal status during a SITL simulation mission?

Many Thanks!