Okay, there are few things I need to figure out at the moment: How to adjust the amount of cells. When you go to the world world space options, there are boxes to set SE and NW cell cordinates X/Y, but the Heightmap editor always has same kind of box, and the cells start at 0,0, always adding new cells (that are next to them) when double clicked. How far the double clicking adds cells doesn't seem to follow either the input SE and NW cordinates nor the height map's. And whenever I try to save at Heightmap editor, GECK crashes.