Another new plugin for Atto – Font Family – adds the functionality to allow the font family to be altered.
Font family for Atto is based on the Atto font size plugin and provides the same features that were provided in the TinyMCE editor. You can also provide your own list of font families in Site Administration > Plugins > Text Editors > Atto HTML editor > Font Family settings
After installing the plugin and changing the font families make sure to add the plugin to the Atto toolbar by going to Site Administration > Plugins > Text Editors > Atto HTML editor > Atto toolbar settings and adding fontfamily in the Toobar config field.
You can download the latest version of the Font family for Atto from this link: https://moodle.org/plugins/view/atto_fontfamily