Changes the characteristics of a particular field.

  Format:  SET field-name[,...] [/qualifier,...]

  NOTE: For a complete list of field names, type HELP FIELDS from the
        command prompt. If the list of fields scrolls off your terminal,
        enter SET SCREEN=132 or refer to the OpenVMS System Management
        Utilities Reference Manual. For a list of field names in a
        particular class, type HELP CLASSES class-name from the command prompt.