Flight modes supported by Boats and Rovers

[hamishwillee]

Docs sayy nothing about even what modes are supported on boats and rovers - e.g. in

• https://docs.px4.io/master/en/getting_started/flight_modes.html
• https://docs.px4.io/master/en/flight_modes/ (and sub-topics)

General questions we'd like to be able to answer for any vehicle

• what modes are supported by rover and boat? What modes from the set in MC are not?
• Where modes are supported, how are they different than for MC? For example on position mode is a boat like FW - ie loiters at point, or does it just wait until it drifts outside a radius then go to middle, or something else?
• What are the default stick mappings

@Jaeyoung-Lim Do you know the answers, or someone we could talk to?

[Jaeyoung-Lim]

@hamishwillee The answer is that supported modes are ONLY manual mode and mission mode.

One issue is that you can switch to acro / stabilized modes or other unsupported modes, but it will just not do anything different compared to manual mode

I am currently adding a bodyrate/attitude controller which will add support for acro / stabilized mode