is this the right place to ask for features?
I use the adress list of the firewall alot, usually to be able to easily change subnet in the future, move router from lab to production, add allowed subnets/ips to do stuff. Or to import tamplate configurations to new devices, it's easier to get it right if you just change your adresslist after the import to match the application than to go edit all the firewall rules.
It would be very convinient to be able to add an adresslist to an adresslist, much like you can make a group a member of another group in a Windows Domain.
From a administrational point of view it would be very convinient.
Now the same IP's have to be present in several different adresslists, depending on what they should be able to do, wich make it easier to make an error and more to edit.