Syntax: SET option parameters
Sets various nickname options.  option can be one of:

    DISPLAY -
Set the display of your group in Services
    PASSWORD -
Set your nickname password
    LANGUAGE -
Set the language Services will use when
                  sending messages to you
    URL -
Associate a URL with your nickname
    EMAIL -
Associate an E-mail address with your nickname
    ICQ -
Associate an ICQ number with your nickname
    GREET -
Associate a greet message with your nickname
    KILL -
Turn protection on or off
    SECURE -
Turn nickname security on or off
    PRIVATE -
Prevent your nickname from appearing in a
                  /msg NickServ LIST
    HIDE -
Hide certain pieces of nickname information
    MSG -
Change the communication method of Services
    AUTOOP -
Should services op you automatically.   
In order to use this command, you must first identify with your password (/msg NickServ HELP NickServ for more information).
Type /msg NickServ HELP SET option for more information on a specific option.