I worked out my whole book in ChatGPT, Claude or Gemini. How do I bring that into BookyAI without losing the structure?

From version 1.9.18 BookyAI reads a blueprint file (.json). In "New Book", in the card "Plan my book with me", click "Copy the prompt". Paste it into the chat where you worked the book out: it asks that chat to hand you the whole conversation as one JSON blueprint (title, premise, reader, chapters with what each must include, voice, facts, terms, characters, your own stories, notes) and to invent nothing to fill the gaps. Save the chat's answer as a file ending in .json (copy the text into a plain text editor and save it, for example as my-book.json). Back in BookyAI click "Start from a blueprint file" and choose the file. You first see what BookyAI understood, part by part. If it looks right, press "Use this blueprint for my book". Pasting the same material as flat text into the topic box leaves the AI to guess how your ideas connect; the blueprint puts each piece where it is enforced.