So to answer your questions, I tried using a single (external) display and that worked fine, no wobbling.
The setup here isn't that crazy, but the asus device is - so I wouldn't put this past problems they may be introducing.
I have found them to break other software in the past, for example their driver installs fail when DiskZIP is installed. They don't care.
I even proved that DiskZIP code was harmless by renaming the code they load into memory, so they couldn't be at fault. Didn't make a difference.
For all readers here: I'd avoid Asus like the plague. Their devices are absolutely the worst. Apologies for the rant, I'll get off the soap box now.
I've uploaded a new video, which illustrates the problem a bit better:
https://vimeo.com/905610472
This has the fixed top view so it is at a 0 degree angle and aligns perfectly with the bottom view.
Top view settings:
https://ibb.co/Ws5pwC6
Bottom view settings:
https://ibb.co/BZWP3pn
Another oddity is that I cannot access this resolution inside Prepar3d:
https://ibb.co/ZJSBvQb
But pretty sure that is a problem with the asus device.
I followed the instructions here to make the simulator expand across my two internal displays:
https://www.prepar3d.com/SDKv4/prepar3d ... rview.html
Specifically, the part where it says "Right-click within the main Prepar3D window and select View Groups->Auto-fill Desktop. This will create a separate Prepar3D window per monitor to display the multi-monitor view."
I'd also be happy if the bottom monitor can show just the ground view and the top showing the ordinary cockpit view. Is that possible?
The default scenario doesn't help since it is the virtual 3D cockpit, so no ground is visible anyways to begin with.
Is there a way to escalate these requests to official support?