Settings for the endnotes in the current document can be made via the ribbon command References | group Footnotes | Endnote 
| Endnote options.
It opens a dialog box with the following options:
Position
The endnote texts are usually displayed at the end of the document. Change the option Position if you want them to appear in a different location.
▪End of document
| This is the default setting – all endnotes are displayed collectively at the end of the document. |
▪End of chapter
| If you have divided your document into several chapters using the ribbon command Insert | Break | Chapter break and want the endnote texts to appear collectively at the end of each chapter, select this option. |
| (For more information on using chapters, see Dividing a document into chapters.) |
Numbering
Here, you can make settings for the automatic numbering of the endnotes:
▪Type
| Here, you can change the type of numbering. For example, you can also use letters in addition to numbers. The endnotes are then no longer numbered with 1, 2, 3, ... but with A, B, C. |
▪Start at
| Here, you can specify the number with which the counting should start. The default value is "1". If, for example, you enter "42", the first footnote will be given the number 42, the next 43, and so on. |
▪Mode
| Here, you can specify whether the numbering should be reset to "1", for example, on each page or each chapter: |
| Continuous numbering: The numbering is never reset. This is the default setting. |
| Restart on each chapter: The numbering is reset to "1" at the beginning of each chapter. (For more information on chapters, see Dividing a document into chapters.) |
Separator line margins
Here, you can set the margins for the separator line that is inserted automatically above the endnote section:
The Top margin determines the minimum spacing between the text and the separator line, while the Bottom margin determines the spacing from the line to the endnote texts.
As you increase the Left margin, the separator line starts further to the right; as you increase the Right margin, the separator line ends earlier.
"Separator line" button
Click on this button if you want to change the appearance of the endnote line inserted above the endnote area.
For example, to change the thickness of this line, select the desired line thickness in Line style / Thickness.
If you don't want the endnote separator line to appear at all, select the option No line from the list Line style.
"Convert" button
If you want to convert all endnotes of the document into footnotes so that they appear at the end of each page by default, click on the Convert button. In the dialog box that then opens, you can make the desired adjustments.