How to make WD Smartware backup continously

While using WD smartware backup v 2.4.13 to backup to Dropbox or even to my external HD, the option for “continuous” backup is greyed-out.

Hello, any interaction of the backup that requires Dropbox will only use a schedule type of backup. If you are backing up only your computer not Dropbox to the external drive then you should have the continuous backup option.

Thank you