Great to see you, i remember long ago studying and learning from your excellent vid tutorials!
But, I guess I only deserved a B- grade at best, since I’m still stuck!
The Insert Silence worked for all tracks (yayy!) except for the Marker Track. It’s a little more nuanced than that actually … Insert Silence worked on the Marker Track only up to the point that there was a change in the Signature Track. After that, all bets are off.
I guess that would be “intended behavior” …
Either way, I think I’ll do it the way you suggest, i.e., Insert Silence, and then manually adjust the Marker Track.