What about group rules (in firewall filter, nat, mangle - and may be other rules lists)?
For example groups like Forefront TMG 2010.
Or different colors for rules (the rules in the same / similar purposes can be the same color).
The colors of course can be disabled ("classic style") in WinBox interface.
and please, please, PLEASE, can you make grouping addresses in ip-firewall-address list? If some address lists has more than 1000 addresses, it would be very useful.
What do you think?