The following messages for a Process Capability object are available only in JSL:
process_capability_object << Goal Plot( 1, Capability Lines( number ) );
process_capability_object << Capability Index Plot( 1, Capability Lines( number ) );
process_capability_object << Process Performance Plot( 1, Capability Boundary( number ) );
process_capability_object << Process Performance Plot( 1, Stability Boundary( number ) );