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

       /DEFINE_LOGICAL=({logname, TABLE=tablename} [,...])

    Specifies one or more logical names that are set to the name of
    the created pseudo terminal device. Each element in the list is
    either a logical name or TABLE= followed by the name of a logical
    name table in which all subsequent logical names will be entered.
    The default is the process logical name table.