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                 To change the filter by choosing a different class
                 from the option menu:

                   1 Click on the Filter option menu to display a list of
                     available classes.

                   2 Select a class.

                   3 Each time you expand a directory, the new filter
                     will be used.  If you have directories open, col-
                     lapse then expand the directory to see the filtered
                     display.