LG MM-535 Owner's Manual page 83

You can hide an entry's phone number(s) and require your lock code
to edit the entry by making it secret. The entry name is still displayed,
but the entry's phone numbers are replaced with "(SECRET)".
Display a Contacts entry.
Select
Highlight
Highlight
Press
Display a Contacts entry.
Select
Enter your lock code.
Highlight
Highlight
Select
(left softkey).
and press
and press
(left softkey) to save the new setting.
(left softkey).
and press
and press
(left softkey) to save the new setting.
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