Well, I know that much... LOL.
If I have five or six different landmark terrains, how can I put them all together? I know it sounds confusing, but basically I tried to do steppes, prairies, and savannas. The problem is that I can get the steppes to look somewhat nice, but nothing else appears. I'd probably just be better off if somebody made a tutorial, because I don't really know how to phrase the question. If there's already one that's been made, that's even better.
Sorry for the confusion... I'm as befuddled as you are.