Press the [User Tools/Counter] key.
Press [System Settings].
Press [Administrator Tools].
Press [Address Book: Program / Change / Delete Group].
Check that [Program / Change] is selected.
Press the group key you want to register or enter the registered number using the number keys.
You can search by the registered name.
Press [Protection].
Press [Folder Destination] under "Protection Object".
Press [Change] under "Protection Code".
Enter a protection code using the number keys, and then press the [] key.
Press [OK].
Press [Exit].
Press the [User Tools/Counter] key.
Specify a protection code of up to eight digits. You can also specify "Protection" without specifying a protection code.
For details on how to access System Settings, see Accessing User Tools.