HOW TO GRAB A 3DMODEL PART AND PLACE IT IN A DESK INSIDE 3DEXPERIENCE AND HOW TO ASSEMBLE IT AGAIN IN 3DEXCITE WITHOUT HTC VIVE?

I HAVE RECORDED THE SESSION FOR WHICH I NEED A SOLUTION . I GOT A SOLUTION FROM THOMAS BUTCHER YESTERDAY FOR A DIFFERENT PROBLEM  IT WORKED .AND HOPING

A RESULT FOR THIS ALSO