RAK 4630 and Arduino Cloud Integration

This is just a Basic Question for the group. Has anybody been able to integrate the RAK 4630 micro INTO the Arduino Cloud as a New THING and make the Device status change to ON LINE after adding one Cloud Variable?.

Can it be Done ?

I guess yes.
I got my RAK3172 registered in https://arduino.eu1.cloud.thethings.industries/console
I have a gateway connected to arduino.eu1.cloud.thethings.industries
The device joins and I can see the messages in the console of the Arduino Cloud.
But I cannot find out what messages have to be sent to get the device shown as online or in what format the sensor data has to be sent.
That is a question to Arduino Cloud.

I see that they are using their “own” library in the Arduino code. Not sure how to implement that with our devices.

The device on https://arduino.eu1.cloud.thethings.industries/console/applications/beegee1962-d2/data