You can add a superscript or subscript in Word using the appropriate buttons in the Font section of the Home ribbon. You can also use keyboard shortcuts to format text as a superscript or subscript.

It is NOT about the footnote line at the bottom of the page but rather the superscript reference to it. In my case, I must either not have additional horizontal space because of a footnote reference ...

You can add a superscript or subscript in Google Docs by selecting text and using the Format menu. You can also use keyboard shortcuts to format text as a superscript or subscript. To add a special ...