Howdy from Australia !
Just new here and enjoying the news.
I have a DK1 Rift, DK2 on order…
Can the VorpX driver be used from within Max to view the perspective window in the Oculus Rift?
You can try to remove 3dsmax.exe from the exclude list in the vorpX config app, and see whether that yields any useful result. I don’t think it will work, but there is no harm in trying. It might or might hook at all. But if it does, it will probably hook into all viewports, not just the perspective/camera view.