Projects as variable

Hi there,

I would like to know how I can access the project ID as variable?
I saw that the project ID is known to the “Google Cloud Monitoring” datasource but is there a way to access this?
Also I tried to use Variables on Grafana Dashboard Settings. There you can query from datasource Google Cloud Monitoring the Projects - but no values are shown…

I also would like to know how to calculate with Google Cloud Monitoring metrics… but I can open another topic for that.

Kind regards
Mathias