I have an iMac 21.5 (2012) and a Macbook Air 13 (2014). Two computers are linked via thunderbolt. Can I keep synchronized two folders? I created a folder with all my music files (mp3) and I'd like to get the same folder in both two computers. So I mean, if I cancel or add some file in my iMac I'd like to get the same changes in my Macbook Air's Music folder. The same game of Notes and Calendars, that uses iCloud to remain update. Thanks!