If I understand correctly, you are asking for some netdata configuration. I will leave it open anyway in case some of our forum users can help. But maybe it's better suited in their forum.

In the past, I think people have recommended integrating with netdata. I don't have experience with netdata but wanted to throw the idea out there. Other than that, current graphs is rendered using data collected by graphite/carbon.

In Cloudron 5.6, we added a way to whitelist additional incoming ports - https://docs.cloudron.io/networking/#whitelist-ports