I don’t think you can, but what I’m doing now is I launch the Sim from the Oculus Dash, the VR desktop, like if I was using my monitor, so I can manage the mouse etc until I switch to the Sim VR. After that, All VR buttons are mapped on my hotas, the 4 ones : switch vr-monitor, recenter and VR top menu on the base buttons, and zoom near my thumb as I use it often. I never had to lift-up my headset after that.
BTW : Does the setting in menu, remove the “pre-flight cinematic”, will bring you directly in the plane already ready to fly, after the click? never tried to remove it (it pre-load vram texture in advance).