Hi, if you’re always looking for this, here is the material setup :
Material has to be set as Unlit, and two-sided.
Set Texture coordinates to 1,0.5
Custom node is set as Float 1 and it’s expression is : ‘return ResolvedView.StereoPassIndex;’
Settings described in the tutorial there : UE4 VR Tutorial: Oculus Go Unreal Engine VR Tutorial | Elara, although with 4.23 the settings used for the project settings don’t work.