How to enable Cockpit shake In VR?

[Plane]

On flat screen, the cockpit shakes when shooting guns and more importantly when you are turning hard and your about to stall which is important to gauge how hard to turn in turn fights. 

But in VR there is no shake effect? does anyone know how to turn it on? maybe through the game files? in warthunder VR the cockpit shakes and it doesnt cause nausea or anything at least for me so I cant see why there cant be any shaking in IL-2 VR