  COMMAND WINDOW
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    Purpose: open a preview window
      Usage: WINDOW(<objectID>,[<left>,<top>,<width>,<drawmode>,
                    <rotX>,<rotZ>,<zoom>,<keepscale>,<outlined>])

        drawmode=("WIRE"|"SOLID"|"GREY"|"COLOR"|"FACE")"
        keepscale: keep initial scale-values unless you press <r> (Rescale)

  Examples: window(1,40,60,400,wire,12,-24,0.5,true,true)
            window(5)
            window(3,0,0,0,grey,18,-42,1.0,false,true)
