You can add a group to another group.
Press [System Settings].
Press [Administrator Tools].
Press [Address Book: Program / Change / Delete Group].
Check that [Program/Change] is selected.
Select the group that you want to put into another group.
Press the group key, or enter the registered number using the number keys.
You can search by the registered name, user code, fax number, folder name, e-mail address, or IP-Fax destination.
Press [Add to Group].
Select the group which you want to add to.
The group key that you have selected becomes highlighted, and the group is added to it.
Press [OK].