Selecting different "Rules sets"

Let me explain: I have a notebook. I’m very often connecting to different LANs at different places. And very often I have identical LAN settings (IP+MASK), so CIS doesn’t know, that it is a brand-new LAN (because it has such Network Zone already).
And of course I would like to have an option to switch between Rules in Firewall.

Example: It is normal to me to allow connections on 139 port in my “home” LAN
But at other place (perhaps in client office) I prefer to block such activity. But there I also have LAN like , so my allowing rule doesn’t block ofcourse =)
So if I would have an option to select Rules sets - it would be great - one click and totaly new rules, designed specially for current LAN.