3.5.8 Configuring the graphics
You can configure each graphics screen by clicking on the cfg
button on the graphics screen’s control panel to the right of the
graph. You can also change the default graphical configuration using
the the menu item
Cfg▸Graph configuration.
You will then be given a window in which you can
change the following options:

X and X+
These will determine the x values for which calculations will be
done.  Y and Y+
These will determine the y values for which calculations will be done.  Z and Z+
These will determine the z values for which calculations will be done.  t and t+
These will determine the t values for which calculations will be
done, when plotting parametric curves, for example.  WX and WX+
These will determine the range of x values for the viewing window.
done.  WY and WY+
These will determine the range of y values for the viewing window.  class_min
This will determine the minimum size of a statistics class.  class_size
This will determine the default size of a statistics class.  autoscale
When checked, the the graphic will be autoscaled.  ortho
When checked, all axes of the graphic will be scaled equally.  >W and W>
These are convenient shortcuts to copy the X, X+,
Y and Y+ values to WX, WX+,
WY and WY+, or the other way around.
This page will also have buttons for applying the settings, saving the
settings for future sessions, or canceling any new settings.