Greetings, has anyone been successful in displaying anything other than the stock information on the onboard display? I have a need to show the magnetic heading on the small oled display, thank you.
I would also like to get info on this. Is there any way to formally request information like this? I’m new to the forum here, but not new to ArduPilot.
Thank you, Mike
I will throw in another vote for this feature. Useful to be able to customise for vehicles that are out of the ordinary, and other reasons the developers have not thought of yet 
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You can always connect a small microcontroller board between the flight controller and display. See this blog post for instructions on MAVLink messaging.