I have recently bought the 4TB WD My Cloud and want to backup the data to dropbox. I was told that I had to upgrade WDSmartware to Pro which I have done. However, the smartware to dropbox only takes from local drive not WD My Cloud. So how can I backup this data to dropbox? As I understand it the WD My cloud is not backing up to WD cloud just using port forwarding to link to physical drive?