Library /sys$common/syshlp/lse$clihelp.hlb DEFINE, PLACEHOLDER, Qualifiers, /LEADING  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /LEADING=string

    Specifies any leading text to be associated with the placeholder.
    The ERASE PLACEHOLDER command recognizes this text and erases it
    along with the placeholder. The leading text must not have any
    trailing blank spaces because the ERASE PLACEHOLDER command always
    skips over such spaces.