I have the same question, there’s even a haptic effect curve asset in the VR template, so you can copy/paste this to create new curves, but AFAICT there is no way to actually create one from scratch. Huh?
Perhaps they’re trying to quietly deprecate the feature? I read that the feature was built by Oculus, so maybe there’s some politics at play? I’m hoping there’s a replacement brewing but not quite ready? So many questions.