Im trying to get my Unreal scene matched up with my green screen but I'm struggling to get the scene scale and alignment right. 

Im using VIVE trackers and when I set the Delta Head Transf it doesn't seem to affect the studio view at all. It just affects my unreal scene. Is this correct?

What is the correct sequence of calibration? 

Currently I'm setting my origin using my tracker and when I check my unreal view 0,0,0 matches with my origin in that scene, but when I check my studio view the 0,0,0 tracker market is "off" from where my unreal origin is.

Does that need to be moved separately? For real world scale should my unreal scene stay at 1 scale? 

Thanks for the help!