I was thinking today: What exactly does raising your terraforming skill give you? Does it just make you lose less energy?

Ok, so anyone here who's ever tried making a expanse of land however large or small completely flat at the exact same elevation know's its a pain in the ass because you can only "level" one tile at a time. What if as our skill increased, we had the ability to "level" more tiles at once? Obviously we'd still have the ability to level just one tile like we do now, but maybe it could move on from a 1x1 area to a 2x2, 3x3, etc as your skill rises. Obviously, this would have to be scaled correctly as to not make it too easy or too difficult.

What do you guys think?