I’m still solutionless. I have a new cardboard headset now that has different lenses, so the gear and X buttons aren’t visible in their POV. But my original headset still has those dang buttons right in my face.
As far as I can tell, they are added as an overlay by google cardboard, not UE4. You would need to use:
cardboardView.setSettingsButtonEnabled(false);
cardboardView.setAlignmentMarkerEnabled(false);
Or perhaps just:
setSettingsButtonEnabled(false);
setAlignmentMarkerEnabled(false);
But I don’t know if these commands work in the UE4 terminal, since they aren’t aimed at UE4. Google cardboard itself needs to receive these commands to remove its overlays. I haven’t tried them in the terminal on mobile, but it may be worth plugging in a keyboard (or using a bluetooth keyboard), pressing tilde in game, and trying them out.