Add sections to the bookbuilder: Einige Steine in unruhiges Wasser (ein freier Vogel trotz allem)

 

With complex structures, e.g., a chapter with subsections, selecting only the chapter is likely to select only the chapter's title, so probably you want to select the chapter and all its subsections.

The text structure is shown below.

 
Sektion
Select
Titel, Autor, Datum...
Source, notes...