My chapter titles no longer match what the chapters are about. Can BookyAI suggest better ones?

Yes, from version 1.9.24. Chapter titles are planned in the outline before a word is written, and a chapter often goes somewhere else. Open the book's page and press "Retitle" above the chapter list (it appears once at least one chapter is written). Choose the "Style of the new titles": "Like the current titles", "Short" (two to five words) or "Descriptive" (says plainly what the chapter covers). Then press the "Read" button, which names how many chapters it will read. The AI reads every written chapter, says whether its title still fits and proposes a new one, then reads all the titles together, like a table of contents, so they don't repeat. Nothing changes until you choose.