I have a story for a chapter but no idea where it should go. Can BookyAI place it?

Yes, from version 1.9.19. In the chapter editor, press "I have a story" in the "Interview me" card, or on the Quality review page press "Add a story" on the chapter. Tell the story in one go, answer the few questions that follow, then press "Write it into my chapter". BookyAI first shows "Where it lands": two or three places in the chapter, each with the paragraph the story would follow and a line on what the story would do for the reader there. Pick one, or "Let BookyAI decide" and it places the passage while writing it and tells you where and why. It never puts a story right after a heading, and never inside a list. If you started from "Add my story here", the spot you were reading is the first card, and you can still choose another.