Wallpaper Wizard 2 has a dedicated tab for keeping your favorites. However, to access this functionality, you’ll need to log in with your Wallpaper Wizard 2 account (or create a new one) on the Favorites tab.
After you have authorized with Wallpaper Wizard 2, your select pictures get synchronized across all your Macs with the same Wallpaper Wizard account.
To add a picture to Favorites, hover over a picture’s preview and then click on .
To add a collection to Favorites, open a collection and click next to the collection title.
In a nutshell, every time you click on a star, the item it belongs to goes to Favorites.