CDO>  RESERVE FILE_ELEMENT MCS_BINARY PARSER_TABLES
  CDO>  CHANGE FILE_ELEMENT MCS_BINARY PARSER_TABLES
  cont>   DESCRIPTION IS "PARSER TABLES FOR VERSION 5.0".
  cont> END MCS_BINARY.
  CDO>  REPLACE FILE_ELEMENT MCS_BINARY PARSER_TABLES

      In this example, the CHANGE FILE_ELEMENT command adds
      description text to the file element PARSER_TABLES.