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

       /UP[:n]

    Moves the display up by n lines (if n is positive) or down by n
    lines (if n is negative). If n is omitted, the display is moved
    up by one line.