Western Digital My Passport User Manual page 16

After configuring your Dropbox account for access by the WD SmartWare Pro
software, the Dropbox icon signifies that the backup source device will be
your remote Dropbox folder:
b. If the selected backup source has more than one internal hard drive or drive
partition, or external hard drives, use the backup source device selector to select
the one that you want to back up:
11. In the Backup Target area of the Select Backup Source and Backup Target screen:
a. If you have more than one backup target device connected to your computer,
select the one that you want to back up files to:
b. Verify that a light-blue highlight surrounds the selected device.
c. If you select Dropbox as your backup target device, use the Dropbox Login
Required dialog to configure your Dropbox account for access by the
WD SmartWare Pro software:
You must configure your Dropbox account for access by the WD SmartWare
Pro software before you can use it as a backup target device. See step 4 of
"Configuring a Remote Dropbox Account" on page 63.
If the selected backup target device has more than one drive partition or network
share, use the backup target device selector under the device icon to select the
one that you want to use:
MY PASSPORT ULTRA METAL EDITION
CONNECTING THE DRIVE AND GETTING STARTED – 11
USER MANUAL