But it does not really work that well, it seems to pancake things rather then explode them. So it is hard to see whats stuck behind another elements. It also uses a 3d render that is fat where a wire frame would work better. Selecting through the elements is hit and miss because it is hard to tell what layer you are clicking and also were Xcode has a slider to hide layers like peeling an onion this uses - Select then hotkey x. But trying it did not hide anything?
I thing if it was a view within hype it would be easier to see the details of what is selected and visualise changes as you make them.
I am pretty sure if you think there is much need for this sort of view then you guys could do much better.
To enable it. open a webpage and inspect an element r just bring up the inspector.
Then use the settings button to check the 3D tool. Yo will then get a 3D button that when clicked wii transform the page.