HLC iPad Problem?

[Krothos]

I have HLC loaded onto a iPad Mini 4. I have removed and reinstalled the software, and loaded the lasted version of the Pathfinder update.

There are 3 vertical lines to the right of class levels under the Classes tab. These appear to be an interactive icon. When I tap those vertical lines, the program responds with a small black box with an activity spinner for less than a second. And nothing else seems to be happening.

What is that vertical lines icon meant to do?

Thanks.