Okay, so the title may be confusing, but what I mean is: In the world editor, you select a region my making a box with your mouse, and hitting ctrl to make a curve. Then the 3 arrows (X,Y,Z) appear, and you can simply move the area up or down. This would make map editing a lot easier. As of right now I am trying to make a lake for Albert park, but it is hard because I can't lower want I want to lower. It is right now completely flat. I don't know what to do about that.