On Wozza's T-6, every instrument on my panel works except for the radio compass.
I use Lorby's Axis And Ohs with legacy planes to implement those cockpit controls. You can't mouse click them in the VC, but you can map any function supported by MSFS to a key or controller button/axis, even ones that are not available through the controller profiles. Or, you can have them available as pop-up panels/gauges, whether it's clickable switch panels, radios, autopilot, or even a radio compass to replace the inop one on the panel. I've even been able to activate animations. I can open and close the rear canopy in the T-6, but I may have to write a script to run the front canopy.
Not as good as a native plane, of course. I would say with AAO and my own tweaks to the MDL and CFG files, I get to about 85% of the functionality of the warbirds we've seen so far. Good enough until we get a real, quality, from-scratch warbird for the game, which we haven't seen yet.
And I do agree that the unfinished and unstable nature of the sim and the SDK are primarily to blame, both for the quality of the products thus far and for the fact that there aren't more of them yet. We have some excellent developers out there who clearly are frustrated and not being able to strut their stuff, coming up on a year after release.
August