How do i allow end users to toggle Landscape Tessellation?

I’ve got this image of a checkbox with tessellation next to it! I will try and find it…

Ha!

328175-screenshot-1.jpg

Let me check out the mat…

Meh… yup, it’s just turning it all down to zero… I see some stuff about it possibly being in the pipeline as UE-21230, but that seems to have disappeared.