Unreal Engine v4.21.2
I'm trying to follow this tutorial here: https://docs.unrealengine.com/en-US/Platforms/AR/HandheldAR/FaceARSample/index.html
under "Face AR Capture Setup" step 3. says: Launch your Project, and in Project Settings set Supports AR to On.
I can't find this option in the Project Settings. I tried searching for "Support" and "AR" by themselves and looking over the entire list of settings manually but I could not find it there.
How do I enable this setting?