Examples

 > GSET * SHOW               - show all attributes etc.
 
 > GSET * CANCEL             - cancel all attributes etc
 
 > GSET HELP                 - list all switch values
 
 > GSET AXES                 - set values for both axes
 
 > GSET PIX CANCEL           - cancel pixel flag and attributes
 
 > GSET SHOW CONT            - show contour data