Adding Fonts and Seeing all fonts installed

It’s not very easy to get a web font to be applied inside the editor. The fonts you see there are the “standard” web fonts that are installed on the visitor’s computer. To add a web based font you need two things:

You can get it listed in the menu with https://www.ads-software.com/plugins/advanced-tinymce-configuration/, follow the instructions on the TinyMCE site to set the Fonts drop-down: https://www.tinymce.com/wiki.php/Configuration3x:theme_advanced_fonts. But it will not be applied to the text inside the editor until it’s included in the iframe head. For that you’ll need a small WP plugin. Also, check out how TwentyThirteen does this.

BTW this may be a good idea for an extension to this plugin or a separate plugin.