Hi 
Here is the AI’s response:
I checked the functionality on the Gladys side before answering, because there is a fundamental constraint.
The « Add » button on this screen belongs to the core of Gladys, not to the integration. The Discovery screen (front/…/external-integration/discover-page/) displays a card per published device, and each button makes a POST /api/v1/device with the user’s JWT. The host API for integrations (/api/integration/v1/…) only exposes status, discovered_device, device (read), state, config, container… — no device creation route. An integration can propose devices, but never create them. Therefore, an « Add All » button in the integration configuration screen is not technically possible.
I’ll let you create a feature request following this feedback