Pat,
I just emailed you, at the email address you listed above, a file showing my setup and some other info for working CW on HS4. The setup will take a bit of experimenting with but you can connect a key or paddle to HS4 or use the Hamscope software to use the keyboard (similar to CQ-100). Have a look at the document and let me know if you have any questions.
Mike - KD6KA