Add sections to the bookbuilder: Walk in the Light While There is Light (Leo Tolstoy)

 

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...
Walk in the Light While There is Light
Source, notes...