VMS Help SPAWN, Qualifiers, /KEYPAD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /KEYPAD (default)
       /NOKEYPAD

    Copies keypad key definitions and the current keypad state from
    the parent process. By default, if you have established key
    definitions or states with the DEFINE/KEY or the SET KEY command,
    these settings are copied to the subprocess. Use the /NOKEYPAD
    qualifier if you do not want the key settings to be copied.