Add sections to the bookbuilder: The Stronghold and the Shrine (Montezuma)

 

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...
The Stronghold and the Shrine
Source, notes...