You will have insert the section break at the end of the main body of the document (you can't insert it inside the endnote area). Then right-click endnote text and choose Note Options from the context menu. In the Footnote and Endnote dialog box, change the "Location" to "End of section."

If more than two sections are involved, you will also have to suppress the display of endnotes for the preceding sections, which you can do in the Page Setup dialog box.

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Stefan Blom
Microsoft Word MVP

Microsoft 365 apps for business
Windows 11 Professional