Library /sys$common/syshlp/mailhelp.hlb EDIT, Qualifiers, /COMMAND  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /COMMAND=ini-file-spec

    When you select EDT as your text editor, the /COMMAND qualifier
    indicates the name of an EDT startup command file (EDTINI) for
    ini-file specification. If you do not specify a startup command
    file for ini-file specification, the default EDTINI.EDT file
    set up for the DCL command EDIT/EDT takes effect. This qualifier
    cannot be specified if you are using an editor other than EDT.