Excellent... I was joining the forum to post exactly this request!
At the moment I have three DNS servers on my LAN which point to three up-stream DNS root servers for resolution.
With m0n0wall's current GUI, I need to create nine separate rules to cover this.
It would be great to be able to create groups for both Source and Destination sections of a rule and be able to add either multiple static IP's and IP ranges into a group.
Also I like the idea in checkpoint of a Service, which would contain multiple protocol/port entries.
This would effectively reduce my group of nine rules into one single rule.
Anyone else like this idea?