How do you remove land using the F5, key 4 area selection tool? I can make a section and ADD land (up) by right clicking. But I cannot figure out (or remember) how to remove (dig down) with the tool. I would prefer this as it's more precise than using the #1 key and the square (grid) shape. I cannot control depth well or size as good as I'd like with the #1 add/remove.
This is to be possible with the area tool, and I remember doing it, but can't now.
Anyone know the secret key command?
