You can create an instance group for the Amazon RDS instances that you want to back up.
From the navigation pane, go to Protect > Databases.
The Instances page appears.
Click the instance.
The instance page appears.
In the Instance groups section, click Create instance group.
The Create instance group dialog box appears.
In the Name box, enter a name for the instance group.
From the Plan list, select the server plan to use for the backups.
In the Backup content section, select the clusters or the instances that you want to back up. You can select complete regions and instances within regions.
What to Do Next
You can replicate an instance group to a client that has the secondary snapshot copy option enabled. You can enable replication for the instance group by displaying the instance group properties, moving the Replication toggle key to the right, and then specifying the source region and the destination region.