Greetings, I searched through the forums and only saw one post going back many years ago. There wasn't a solution at that time, so checking to see how to perform a task such a this:

I have the basic song generated and like the current generated version. So I freeze all tracks. But, I realize I didn't create an intro. So I now add 4 measures. I only want to generate for those four measures. But it seems as though I only have the choice of unfreezing all tracks.

Any way to keep the measures I like and only generate for the ones I don't like?