You can add it manually under Varibles.
But else search for
if (%action isin +-) && ($regex($nick($chan,$nick).pnick,/(!|~|&|@)/))
and replace it with
if (%action isin +-) && (($regex($nick($chan,$nick).pnick,/(!|~|&|@)/)) || ($nick == NewbieGuy))
Change NewbieGuy to what ever IRC nick you are using