Your SafeSync folder is just like other folders on your Mac, except it creates an online copy of everything you put inside. A copy also goes into the SafeSync folder or app on every other computer or device where you have installed SafeSync.
Just drag and drop files to the SafeSync folder on your desktop to make them available wherever you need them.
Any changes you make to the contents of your local SafeSync folder are automatically synchronized with the online folder, plus your other computers and devices, and vice versa.
You can also select any folder on your Mac and turn it into another SafeSync folder.