To add fonts to a Suitcase TeamSync library, select the library under TeamSync Libraries and choose File > Add Fonts to Library. Select your folder of fonts and click Add.
Suitcase Fusion will add the fonts to the TeamSync library. You can also add fonts by dragging the folder and dropping it onto the TeamSync Library.
You can create sets and add fonts to sets in a TeamSync library normally. Sets that are created in a TeamSync library are visible to all users.