How do I add fonts to TextExpander for MacOS?
How to add fonts to TextExpander
Your Mac comes with built-in fonts, but you can download and install more from Apple and other sources.
To install a font, double-click the font in the Finder, then click Install Font in the font preview window that opens. After your Mac validates the font and opens the Font Book app, the font is installed and available for use.
For more information, visit Apple Support.