If you're both a busy video editor and a big time gamer, and you're looking for a new way to edit, you might want to check this out.
The first thing you have to do is get yourself a PC controller — the one Casey uses in his video is a Logitech Gamepad F310, which you can pick up pretty much anywhere; Amazon has them for $20 — not too bad. The next thing you have to do is map the buttons to do keyboard shortcuts. The important thing to keep in mind when doing this is to program them in such a way that it makes editing fast and efficient — otherwise they're not really shortcuts anymore. Luckily Casey shows you how he mapped his.
Full disclosure here — I'm not a big gamer. I mean, I've tried bonding with my daughter by giving her a broken controller to "play" NBA 2K16 with me, and I even let her run around Skyrim for a while to (until she hacked some random lady to death — and laughed maniacally), but I'm not someone who dedicates much time to playing video games. So, chances are I wouldn't utilize something like this when I edit.
However, if you are a gamer and you do want to shake things up, this is probably the most fun way of going about it. Casey says editing with a PC game controller is pretty fast; it may not be for you (especially at first), but again, it looks super fun!