If you fly using VR then you probably already know what this is. If not get on over to https://flyinside-fsx.com/ and get it.

Although P3D v3 and v4 has native VR support it leaves a lot to be desired.
FlyInside is a 3rd party VR app that give you much better FPS than the native VR and allows you to use the 2D popup windows such as GPS etc. and also has Touch support in the Oculus version.

Also available for FSX and X-Plane