The way to get help is open a topic that reflects what your asking, people without a mobotix camera will probably ignore this thread.
You need to ask if someone can share working yaml code or a fully done widget for showing a camera.
I do not do this as I use chromecast and home hubs to display the cameras. I don’t want a camera steaming non stop on a wall mounted tablet.
The other thing you can do is create a bounty for a widget if you can’t do it yourself.