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

 window-name

    Specifies the name of the window to define. The window name must
    consist of letters, digits, underscores, and dollar signs. It
    cannot begin with a digit.

 start-line

    Specifies the starting line number of the window. This line
    displays the top header line for the screen display using the
    window. The top line of the screen is line number 1.

 line-count

    Specifies the number of text lines in the window.

 start-column

    Specifies the starting (leftmost) column number of the window
    (the default is column 1).

 column-count

    Specifies the number of columns in the window (the default is the
    current screen width).