Modifies the defaults for /[NO]HEADER and /[NO]INDEX. Specify
    either or both qualifiers with or without a NO prefix to set new
    defaults. Setting the default to /NOHEADER implies a default of
    /NOINDEX. The new defaults remain in effect until another SET
    OUTPUT/PERMANENT command is entered or the SDA session is ended.

    You cannot combine /PERMANENT and /SINGLE_COMMAND in one command,
    and you cannot provide a filespec with /PERMANENT.