It would be nice if it was possible, to draw a square on screen, and then delete it (or save it).
So we can use our own God like rules, and kill the uncontroleable weed.
In nature its often that such big erasure events gives new chances too new starting species.
Often sims get overwhelmed, it would be nice to be able to kill a lot them in a single click.
(ahumm ... I note Gods can be dangerous...)