u/Front_Juggernaut536

I'm editing a long manuscript in Google Docs using the Gemini sidebar. It seems to have a very limited context window and only processes a few dozens or so of pages.
Are there any tips for managing a full book's worth of content within the Docs integration?
Note: I’m specifically looking for solutions inside Google Docs. I prefer not to move the project to NotebookLM because I need to keep my manual editing flow intact.