Hmm, of course you could do something like this in your subnetgroups.txt (IPGroups.txt in current version) file:
192.168.1.1-192.168.1.100,Marketing
192.168.1.101-192.168.1.105,SpecialGroupForServers
192.168.1.106-192.168.1.120,Marketing
192.168.1.121-192.168.1.200,Controlling
...
In current MoveClient.vbs versions, you can use the OSGroups.txt file to control MoveClient.vbs. SEP client will be moved dependent on their OS. Snippet from the MoveClient.pdf file:
Windows XP*,Marketing
Windows 2000,Group1
Windows Embedded*,Group1\subgroup1
Windows 2008,Group2\subgroup1
Windows Vista,Group2\subgroup2
That only works if you can cleanly separate by OS. However, I don't know if this works with SEP 11.0.6.