Library /sys$common/syshlp/pca$help.hlb SET, EDITOR, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 command-line

    The optional command line is only used with LSEDIT and VAXTPU,
    and is passed to the respective callable editor with each
    subsequent EDIT command. If you do not specify a command line, a
    default of LSEDIT or TPU will be assumed. The command line should
    consist of the DCL command line used to invoke the editor, except
    that it should begin with LSEDIT or TPU instead of EDIT/LSEDIT or
    EDIT/TPU.