The mouse may be used in the X and MS Windows versions of nu/TPU. The three
mouse buttons each perform a separate function within nu/TPU. The left button is
used most frequently. It is used to select text, move the cursor around the
buffer, control the scroll bars, display the pull-downs, exit dialog boxes, and
execute commands from within pull-downs and dialog boxes. The middle button
accepts input from global selections. The right button displays dialog boxes.
MOUSE