Single Pass Rendering Option Missing From Player Settings?

Sorry If I this is a dumb question. I am just trying to get caught up with Gear VR and Unity 3D stuff now. I have alot to learn. I am testing on a Galaxy S6. In any case I have read in a few areas that Unity 5.4+ supports Single Pass Rendering which may help improve performance for some VR projects. I cant seem to find the option to enable it and test it though. Is it not supported for Android/Gear VR setups?

Here is a screen of my player settings. I thought the option for it was supposed to appear below the VR SDK selection but am not seeing it.