Your error lies in the range of your sections. You created them after your “Notes” but they contain nothing.
Instead, create first your sections (one per chapter). Inside each section, type your chapter heading and its text. When you insert a note, this note is inside the chapter section and is then “jailed” into it. You’ll get what you’re looking for.
I added a fake note at chapter heading to create the “Notes” paragraph before the notes. I also customised the Footnotes
settings in Default Page Style to center the separator.
Study carefuly the corrected sample: test(1).odt (12.3 KB)
No offence intended, but you have not yet understood the advantages of styles and the benefits already present in built-in styles. Don’t vertically space with empty paragraphs. This is mechanical typewriter era usage; you can do much better with Indents & Spacing
configuration in paragraph styles. Don’t horizontally space with spaces or tabs.
Default Paragraph Style should not be applied to any text. This style is the ancestor of all others. Its role is to defined attributres shared by all others so that modifying it quickly gives another consistent look to your document (you also have other intermediate ancestors in the tree of styles; select Hierarchical
view in the style Navigator to have an idea of the relations between styles). The “standard” paragraph style for text is Text Body.
If you want to indent the first line of your topic paragraphs, use First Line Indent and get rid of the initial tab.
Learn how to use styles: paragraph for global paragraph look, character when you want to differentiate a word within a paragraph, page to define page layout and various properties (header, footer, notes geometry). You can skip frame styles if you have no picture or drawings. List styles are useful when you need to format list (beware of Format
>Bullets & Numbering
or the toolbar buttons; they cause afterwards more problems than the apparent “comfort” they offer to quick’n’dirty create lists).