display-name

    Specifies the name of a new screen display to create. The display
    name must consist of letters, digits, underscores, and dollar
    signs. It cannot begin with a digit.

 window-spec

    Specifies the screen window at which to position the new display.
    If you omit window-spec, the display is positioned at window H1
    or H2 (H1 and H2 are used alternately, starting with H1).

    Window-spec can be the name of a predefined window, the name of
    a window you have defined with a SET WINDOW command, or a window
    specification of the form:

 start-line,line-count[,start-column,column-count]

    Start-line is the screen line number at which you want the
    top border of the display to be placed. Line-count is the
    number of lines of text you want to see in the window. Start-
    column and column-count specify the leftmost column and the
    number of columns in the window, respectively. Start-column and
    column-count default to column 1 and the current screen width,
    respectively.

 display-kind

    Specifies the kind of display to create; OUTPUT, PLOT and SOURCE
    are the valid keywords. OUTPUT indicates a regular output display
    to hold the output of SHOW, LIST and SEARCH commands. PLOT
    indicates a display to contain the output of PLOT and TABULATE
    commands. SOURCE indicates a display to contain output from a
    TYPE command. If you omit the display-kind parameter, an output
    display is created.