Collections are a simple system, that allows you to organize multiple fonts for your needs: by project, by style, or by any other structure.
To create a collection, you need to click the New collection field, below the collections list, type a name, and press Enter. A new empty collection will be added and displayed immediately, ordered alphabetically.
To add fonts to a collection, select some fonts from the family list on the right and start dragging them. The collections where any fonts can be added will be highlighted with green color. Position your mouse over a collection and stop dragging when you are ready to add the fonts: they will be added to the collection under your mouse immediately after you drop them.
To remove fonts from a collection, select them when inside a collection and start dragging. A panel with a trash can icon will appear on the right side of the family list. Simply drag the fonts over that panel and drop them. They will be removed from the current collection immediately.
To package all the fonts contained in a collection into a single .zip file, right-click the corresponding collection and select "Package". You'll be prompted to select the file name and path to save it to.
Please navigate to the Awesome page for details on manual and automatic sync options.