Right-click in the table of contents, and then choose Edit Index or Table of Contents. What does this mean? You can’t “right click in the table of contents”
I see that I added my own table instead of having libre office generate one. It was hard to figure out to format from the box when I right clicked on the table of contents. Now it seems to be working, but it sometimes it did and sometimes it didn’t. I still wonder if it’s possible to click on a chapter heading or subchapter heading to return to the table of contents. I formatted my chapter titles in my document as heading 1 and subtitles as heading 2.