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  This program is used to display the graphical image of
constructed diagrams - amplitude or squared. The number of
diagrams that you can simultaneously see on the screen
depends on the diagram and window sizes. If you would like
to see more diagrams on one screen, increase the window size
using standard X11 facilities (e.g. using the Window Manager).
  The current diagram is indicated by a surrounding box. In the
left-top corner of the screen you can find the ordinal number 
of the selected diagram and the total number of diagrams. You can 
change the current diagram by Arrow keys or by a mouse click.
  You can use the PgDn/PgUp keys to scroll the diagram set. 
The Home/End key moves you to the beginning/end of the set. 
To display a diagram with some ordinal number directly, 
press the key '#' and input the number.
  To finish work with the Diagram Viewer, press the Esc key.
  The names of these actions are shown in the top line of
the screen. You can use a mouse click to perform any of them.
    There are also auxiliary, context-depending functions. 
Their names are written in the bottom. To get an information
about these functions press the F1 key. To start one, click on
the function or press the capital letter in the function name.