t;Alt/M&gt; sets the plotting area around good and bad points,
command &lt;Ctrl/M&gt; sets the plotting area around all points: good, bad
and unrecoverable. In addition to that the plotting area may be adjusted
manually. Hit &lt;ESC&gt; to enter DiaGi mode, then hit the Central Mouse Button
for adjusting the plotting area, then hit &lt;F1&gt; to come back to SngAmb
mode/
 
  REPA updates the plot as soon as you hit the Central Mouse Button, but
it delays updating scratch file. It stores all entered commands