This is the guide they posted with 0.6K patch:
TIPS on using Live for Speed with a VR headset :
NOTE : For Oculus, Runtime 0.7 (or later) is required
1) How to enter VR mode in LFS :
- Start LFS and click 3D on the View Options Screen
- Select VR headset and click OK
2) To reset your seating position, the text command /rift reset is assigned by default to the F8 key.
- When a new driver takes over, ask them to look straight ahead then press F8
- Key assignments can be edited in Options - Game - F1 to F8
3) Accessing your desktop while LFS is in VR mode.
- You will find that your mouse cursor is confined to the LFS window
- Press CTRL+C to free the mouse and now the mouse can go onto the desktop