The Change Terminal Characteristics routine changes or retrieves
    the terminal characteristics for a given pasteboard.

    Format

      SMG$SET_TERM_CHARACTERISTICS  pasteboard-id

                                    [,on-characteristics1]

                                    [,on-characteristics2]

                                    [,off-characteristics1]

                                    [,off-characteristics2]

                                    [,old-characteristics1]

                                    [,old-characteristics2]

                                    [,on-characteristics3]

                                    [,off-characteristics3]

                                    [,old-characteristics3]