You can edit the agent locations for multiple devices at once on the Device Manager screen.
Here is a video tutorial to add a new location to multiple devices.
To edit locations:
- Select the check boxes next to the devices you wish to update.
- Click the action button in the header of the platform you wish to edit, and click Agent.
- On the agent location selection page, select locations and chose to either add or remove selected locations from the selected devices (showed across the bottom).