CLIC\SHOW Argument
Display the parameters defined by SET. Each "SET Argument" command has
an equivalent "SHOW Argument".
In addtion, "SHOW ALL" will display all parameters specified by SET.
"SHOW CRITERIA" will display only selection criteria for the command
FIND, "SHOW DISPLAY" will give only the parameters relevant to command
PLOT, and "SHOW GENERAL" will give the rest of the parameters.