I'll try to ask all my questions regarding the World Editor in here from now on.

When I start up the World Editor and try to start a new level, the first thing I want to do is select the area I do the terrain in: tiles, hills, etc.
However, I cannot select the gridded area of the World Editor. I know usually when you left click a terrain grid that it is meant to turn gray, but for me, the borders just light up white when I highlight it with my mouse and has no affect when I actually click the grid's square. I have no idea why this is happening. I watched the World Editor video at the site and it didn't help. I tried "Insert Heightmap" but that had no affect either. How do I make the square areas gray so I can apply tile textures, hills, and objects to them? Thanks.

Quote:usually when you left click a terrain grid that it is meant to turn gray

not left click, but you need to use Insert key to place the terrain