Thanks for the responses, guys,
@Chappel - I would be using softsynths (not external hardware) in SONAR X1. But the concept would be just as you described.
@Glenn - Yeah, doing the change after recording the track I knew was possible. But, to be honest, I didn't give it a thought that the SONAR guide would even touch on that. Thanks for proving the reference and sorry for not doing the leg work myself. (Cakewalk help files make it hard to find the answer sometimes.) However, I was hoping for recording or capturing the changes in real time during recording. That's what I meant by "capture." It was a late late night post and my brain wasn't very sharp, not that it's usually more than dull. Anyhow, I guess going back to find those specific points on the timeline and "programming the track" would be the only way. Would be nice to do it in a single pass (in real time).
Kind regards,
Living Room Rocker