To create a font set, click "Create," give it a name (for internal use), select the fonts to include, decide if the set should be pre-selected for new templates, and choose store visibility.
Here you have the possibility to bundle fonts in sets to assign them to your templates more easily.

To create a new set click the "Create" button.

Name
Here you specify the name of your font set. This will not be displayed in the frontend and is only used for assignments within the personalization template.
Fonts
Here you select the fonts you want to assign to the font set.
Preselected
This is where you decide if you want the set to be pre-selected when you create a new template.
Stores
Here you decide if the color set is only visible for a specific store view within the data center.