Further to my comments above, there is already a tutorial on the KN7000 sequencer, on the Tech Tips page of my website (Tip #22) It was presented at the last Florida Jam by Jim Helwig and with his permission, I added it to my Tech Tips page.
When I get some time, I will address the specific issue of adding extra tracks to an existing sequence and publish the document on my Tech Tips page - hopefully within the next couple of weeks.