1.DBG> SET WINDOW ONELINE AT (1,1)

      This command defines a window named ONELINE at the top of the
      screen. The window is one line deep and, by default, spans the
      width of the screen.

    2.DBG> SET WINDOW MIDDLE AT (9,4,30,20)

      This command defines a window named MIDDLE at the middle of the
      screen. The window is 4 lines deep starting at line 9, and 20
      columns wide starting at column 30.

    3.DBG> SET WINDOW FLEX AT (%PAGE/4,%PAGE/2,%WIDTH/4,%WIDTH/2)

      This command defines a window named FLEX that occupies a region
      around the middle of the screen and is defined in terms of the
      current screen height (%PAGE) and width (%WIDTH).