Nice little extra tidbit for those tweaking lighting, if you test your map and leave it open and switch back to the lighting window and go to Data -> Auto Update Game any changes you make (or even if you change lighting sets) in the lighting editor will instantly reflect in the game (works very well with a multi-monitor setup). This makes it real easy to tweak your settings without having to restart testing your map each time. The terrain editor can reflect your changes as well but not nearly as well as the game itself.
Hello. It seems like a useful tutorial but there is one thing I can't seem to do.
I've done everything you suggested (numerous times actually) and I seem to hit a snag at 6:25. There is no "Lighting" field. I had the same problem earlier in the tutorial when setting the time of day. I fixed that by allowing the editor to show me advanced options (newby, I know) but that approach does not solve the problem this time.