Firewall undo button

[Groveld]

Is it a good idea to add a button to undo the removal/change of a firewall rule?
I'm testing adding changing removing rules and sometimes i remove the wrong rule because the browser hasn't updated yet or just bugs out for some reason... anyhow, the new button would remove some headache by adding a small rollback to the firewall. saving multiple points in time is overkill, but rollback over current changes should be nice to have.