Add sections to the bookbuilder: Thoughts Occasioned By The Perusal Of Dr. Parr’s Spital Sermon, Preached At Christ Church, April 15, 1800 ( )
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.