That area is for the preprovisioning. This is where you would configure the Group Membership before connecting the devices.
You can go to your group > Devices > List view (upper right). Then you will see a download button that you can use to export the list to a .csv file to work with.

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Dustin Burns
Lead Mobility Engineer @Worldcom Exchange, Inc.
ACCX 1271| ACMX 509| ACSP | ACDA | MVP Guru 2022
If my post was useful accept solution and/or give kudos
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