[Framers] FrameMaker 2019: generating responsive HTML5 from a ditamap: ToC is just an alphabetical list of topic titles

[Yves Barbion]

Hi group

I'm generating responsive html5 from a ditamap, using FrameMaker 2019. I
see that the table of content is not really a table of contents, but just a
flat list of all my topics titles, arranged in alphabetical order. Any
ideas how I can get a "real" ToC in there?

Many thanks in advance.

Yves