Assigns a numeric value and attributes to a print form name. The
    /FORM qualifier is required. To modify a form's name or number,
    you must delete and redefine the form. Values for any DEFINE/FORM
    qualifier can be modified by reentering the DEFINE/FORM command
    with different values, as long as the form name and number remain
    the same.
    Requires OPER (operator) privilege.
    Format
      DEFINE/FORM  form-name form-number
Additional Information:
explode
extract