The on demand or selective cloud sync functionality is already provided by the amazing odrive service, that can also manage all the most known cloud services out there https://www.odrive.com
@rrhoover@nivo0o0: Check out @pietroblu's comment about odrive. This works on Dropbox, Google Drive, Amazon Cloud Drive, every one of them!
I have an unlimited cloud storage on Amazon and I use odrive to access it and sync only the folders I need, just like the feature dropbox is showing off. Non-synced files exist as placeholders, which can be opened with…See more
