Sorry for the delay. Just getting back from an audio recording trip for the Twin Commanders and the King Air.
1-3 are generally in the realm of "my aircraft don't support Ctrl-E", and "MSFS 2024's flight starting/restarting system are very confused." I will look into the loss of synchronization with reloads to see if there is an easy solution, but when I have looked into similar things in the past, they were beyond my control to fix.
This has been reported, and I've already fixed it for the next update. Thanks.
I will test this next time I have the simulator open, but the code is identical to my other aircraft where this feature has been working for years.
You're referring to the copilot's side localizer for use with the KNS-81? You can control the OBS simply by modifying L:var_RNAV_OBS, number. Let me know if you have any trouble with that.
I use the simulation variable A:SURFACE TYPE, ENUM, which is the only way to read surface type to the best of my knowledge. I know next to nothing about scenery design, but I believe that the designer should have the opportunity to select an appropriate surface type tag while creating any custom materials.
The audio panel switches are not state saved in any of my aircraft. Sorry for the disappointment.
Let me know if you have any more questions, or if there is anything else I can do for you!