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

    Moves the cursor either to the beginning or end of a line
    depending on whether the direction currently specified is FORWARD
    or REVERSE. If the cursor is already at the specified destination,
    LSE moves it to the corresponding break on the next line in
    the current direction. The /BEGINNING, /BREAK, /BOUND, and /END
    qualifiers are mutually exclusive.