Add sections to the bookbuilder: Peter Kropotkin’s Last Letter (Pëtr Kropotkin)

 

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.

 
Section
Select
Title, author, date...
Peter Kropotkin’s Last Letter
Source, notes...