Select "Amazon Simple Storage Service " from the "Add Device" option drop down. This will display the S3 properties dialog
Device: Enter the name for this device.
Access Key ID: Enter the Amazon S3 Access Key ID for your account login.
Secret Access Key: Enter the Amazon S3 Secret Access Key for your account login.
Click "Check Credentials" to confirm your settings for Access Key ID and Secret Access Key.
Bucket Name: Enter the name of the S3 Bucket you want your data stored in.
Backup Directory: Enter the directory you want your data stored within the S3 Bucket.