Hi. There are three ways to draft a long document - which, as you will see, are basically the same logic.
Method 1
Create a Stack and add Notebooks for chapters or main plot points
Within each notebook create a new note for each 'scene' and add a Table of Contents note to list all the notes
Add a leading number to each note title - 0010, 0020 etc (like in old coding practice, this allows you to add 0011, 0012 later as extra narrative if you find it necessary)
Use the ToC to re-order the content if necessary, and re-number the titles accordingly
On completion of the document sort each notebook on title and (if necessary) merge notes into one continuous flow.
Copy and paste the content into a word processor file and add/ edit styles as necessary
Method 2
As above, but create a Stack for 'Drafts' and add one notebook for each individual document.
Number note titles with both chapter and section IDs - 0010-0010
Sort/ merge as above
Method 3
Use a Word processor directly and attach the .DOCX (or whatever) file(s) to a note. (NB this will be editable on any device that has the necessary WP editor software installed.)
It's important to keep backups of your database - especially in the last case - occasional typing errors might delete something valuable.
Note History and 'Undo' can usually help, but just in case...