Provider Backupsbutton located in the top menu. On the page just opened, click the button
Connect cloud account.
Savebutton. After that, you will be redirected to your DigitalOcean account.
Synchronize account. By doing that, Weap.io will import all your Droplets & Volumes. If you don't press the button, Weap.io will automatically run the synchronization after some minutes.