Ok, so after hours of fooling around, with me playing the role of the fool, I think I have what I was looking for. However, no matter what I did for a long time, the count-in would be there when I played, but not be in the rendered file. I swear this is a bug, because after trying every setting on and off, it re-appeared. Changing the count-in format didn't change that, either. You have to quit the app and run it again, apparently. Also, in render, I check 'normalise' and it isn't normalised. I've noticed, in fact, that many of the provided tracks aren't normalised, so I usually do it in my software here. It's easy to normalise in Audacity. Better in the original, though rather than in the mp3.