FIELD SET OPER

Usage: FIELD <field> SET OPER [on|off]

This setting limits the field to network operators.

Example:
/as field Comment set oper on

Many fields are nice to allow to all users, such as a space for them to put their age or job. But fields that are restricted to network operators make them easier for normal users to identify and harder for normal users to trick other people into thinking they are an operator.