Question that I need help with.

When I build a pool in RCT3, there is this blue shadow,light when placing peaces. Its very similar when placing a pre-built coaster. Is there a way to remove this. thanks

Oh, you mean like the "ghost" thing that shows where the piece will be? I'm not too sure you can actually remove those from the game, but if you could, it would be under the settings somewhere.

No I think he's talking about the blue pool "grid" that appears. You can turn that off with one button. I believe it's a grid button in the pool construction tab. That should do it! (I believe it's green when on and gray when off)