You may wish to keep a copy of a particular plot displayed on the screen, perhaps for later comparison with another CODA plot. Whenever a new plot is requested, CODA automatically over-writes the image currently displayed in the graphics window. However, your graphics device may have a COPY option under the GRAPH menu in the top left of the graphics window. If so, you can click on this option to produce a second copy of the current graphics window which will not be over-written by the new image about to be produced.