Reply To: Combine two paragraph styles in a single TOC entry

So after struggling with this very problem for many many years, the solution that I found to be best was LiveTOC by ID-Extras (https://www.id-extras.com/products/livetoc)

The idea is that you build your TOC with InDesign’s rather limited tools and then fix manually the toc to look the way you want.

You then use LiveTOC to basically convert the page number references into hyperlinks so as the page numbers change from draft to draft, the TOC remains up-to-date.

There was a bit of a learning curve in understanding the principle of how to use it, but once the penny dropped, it has saved me time. Also my clients like that they can check the toc in the pdf by simply clicking on the contents page.