Hello, I had a question as to Apple events. What software or program or system do they use to do their live events? How they have Steve in the bottom and the slides behind him or then move to different two panes in the window. Wasn't sure if it is done during production or if it is done post with a specific software. I am trying to do the same thing in post and I liked the way their's looks. Thanks for your help. Gross out!