I think those are the BiaB markers, like on the Chords window how you can make certain measures Blue, or Green, etc. as shown on page 80 of the manual.

Have you looked at that Data Filter yet?
It is a powerful tool I find useful often for copy/cut/paste type edits. It lets you narrow things down.


Make your sound your own!
.. I do not work here, but the benefits are still awesome