I have a Samsung Galaxy Note 10.1, had it for a few weeks. Just got a Galaxy S4 phone. Running Dropbox on both as well as on my PC. On my Note, when I open Gallery, it shows thumbnails from Dropbox as well as what's on the phone, and facebook. Dropbox does not show on the S4 however. And it does not appear to have the option to include it like on the Note. Is there a way to do this on the S4?