This looks really impressive well done on creating the editor. You've explained it three times to me - in the initial post, on the website and here in the comments but I've still had trouble fully grasping the solution fully.

Correct me if I'm wrong but is this essentially a really simple to use abstraction over the common tools used to create mixed-reality environments? Just import your assets and pick from some common interaction methods to test stuff your more quickly? If so, this looks really great.