RH 2020 - Configuring Tables of Contents in PDF output

OK. Thank you for your help.

I'm not sure you will get what you want. The way the TOC works is now different for online and print outputs. Take a look at the TOC topic in About RoboHelp.

All the projects I am using have been upgraded from RH 2019. I havent tried this in a new project created in RH 2020. I will give that a go.

I want the TOC in my PDF output to be the same as the TOC in my Robohelp project. Neither option gives me what I want. If I select chapter names and topic titles, I only get the top section and then all the TOC entries underneath are a flat list. If I select Use topic heading styles, I just get a flat list of TOC tiltles, except where I have a topic that also has a heading 2. 

I'm not clear from that whether you are saying having two TOCs is giving you what you want or there is still an issue.

If I choose the topic headings and select 3 levels I just get a flat list of topics, except where I happen to have a heading 2 in the same topic. And it uses the topic titles not the titles in the TOC. I need to use the titles in the TOC because of my product name change. In other words, the same topic now refers to two different products so I have to have product specific TOCs.

In the layout section of your preset, change the TOC Structure setting to Use Topic Heading Styles. I think that is the issue.