Unless my copy of MFS2020 was bugged, it used to work just fine. A good example is the Cessna Latitude. Before the series of AAU updates, I was able to do a full copilot experience but now it just goes full throttle 100% of the time. The Boeing Dreamliner is a hit and miss. The default Airbus a320 works just fine. 90% of the default piston/turboprop works just fine. I have to push the throttles on the Cessna Longitude to make it taxi and takeoff.