Need help creating a repeating group in a repeating group

Well, I figured it out after all. Note the following:

  1. I replaced the “Course” button with an icon that kicks off the workflow to display individual courses.
  2. Instead of having a “Tracks” button, I just made the course name field a toggle, which then kicks off the workflow that either shows or hides the tracks.

The only issue I’m still having is this:

When I toggle off the tracks, the repeating group row itself does not shrink to its original size. This is especially evident when I set the “Repeating Group Tracks” to display values in a single column. To minimize this effect, I’ve set my “Repeating Group Tracks” to display data across multiple columns. I’ve researched this issue and found others who have experienced the same problem. Here’s the link: