Grafana Diagram Panel - Create Live diagrams by passing Mermaid syntax from outside to Grafana

I am trying to create Dynamic Diagrams on Grafana using Diagram Panel

I have created various Network Diagrams using Mermaid Syntax in the Content area. But that diagrams are Static & cannot change automatically when any Network Change happens.

Now, i am looking for option to pass Mermaid Content from URL or any other way like keeping Mermaid file on a Server ; then calling it.

I have tried to add **Diagram Definition*

* usign URL Radio box but it is not working. If anyone can through light on the same, that will be really appreciated.