You can change the eraser to only erase a certain type of thing like terrain or props. If You Go To The Eraser And Select Terrain, You Can Change The Size Of The Eraser 1-3. I don’t know why there isn’t 4 when the placing terrain brush can go to 4, but anyways. You can also change what layer you erase on.
If You Go To Edit Options In Options, You Can Change Your Speed. You can also zoom out, and show your memory bar, and you can use grid snap to line things up better, or if you want to do it yourself, you can show grid.
This isn’t really necessary as there are already guides on this. Also no one can edit it as you are not tl3 and therefore cannot make it a wiki. You also only have 3? Days to edit this, as you are only a basic role.