I guess it’s not possible with a < group > device and/or via flow. As this is a basic function of the < group > device, you might better ask in the < group > topic: [APP][Pro] < group > (3.2.4 - Stable)
Another option could be to create an Advanced Virtual Device (AVD) with the Device Capabilities app. For more information please take a look at the appropriate topics:
[APP][Pro] Device Capabilities - Enhance the capabilities of devices
[APP][Pro] Advanced Virtual Device (Device Capabilities App) with Unique Text Status Indicator