Thank you very much for your help but unfortunately it doesn’t work this way for me. The entry for the TOC appears several times in the TOC and the numbering in the TOC differs from the numbering in the document. Part of the problem seems to be the subtopics in the frontmatter chapter. However even ...

Great, this would be a nice solution. I would be very glad if you could share the css with me.
Thank you very much.
Best
Thomas

Hello, I need to create a DITA Book that includes an Overview chapter before the TOC. So, I included a Topic Group (alternatively a referenced Map) in the frontmatter. The chapter is listed in the TOC but the numbering of chapters starts with the first chapter after the TOC, which is actually all ri...