With this option engaged, the commands that you select are written to
the window from which you executed the command to start up Spherekit.
With this option engaged, the commands that you select are written to
a log file.
With this option engaged, all GMT commands are written to the
window from which you started Spherekit. The default value is to
suppress this display.
This option allows the user to create a set of bins to use as a scale in the
display of fields.