Is it possible to copy filters.cfg to a backup and start a new
"temporary" minimal set of filters and then copy the original
back? I want to keep the filter set that I have, I have to
disable filters at the moment because I have an exception
that is needed, but I don't want to run wide open until I
figure it out. So I want to back-up what I have so far
and start a new filter set to block key ports (at least)
and then return later to my original set.

Can this be done by copying filters.cfg to another location
and then copying it back when I want what I had before?

I just want to make sure because I can't afford to lose
the rules that I already have.

John Puskar