I moved the gem in the crate into position by way of the crane. Now I stand under the crate but don't get levitated when I use part #2. I just turn invisible.
  
 
  
  
    wrong part, babe. that's the invisible one
 (not entirely being a wiseacre)
 
 the hot buttons didn't work for me,
 whack your ESC button and grab the proper
 one from inventory. I had to choose those
 suckers from inventory to get them right.
 
 bon