OMP chapters and sub-chapters

Dear all,

I am using OMP 3.1.0. I would like to organize a book in away to have chapters and I kind of subchapters or articles under the chapters. The picture would be something like this:


Further on I would like to have abstracts and keywords at each subchapter/article.

Is that possible? Any hint how to do it?

Regards, Primož

Although this topic is a bit outdated, I had the same issue and could workaround that by placing “empty” chapters (i.e. with no associated files) as “section titles” and then setting the corresponding chapters (articles/subchapters) in sequence as usual. But it’d be great if that were a built-in feature.