[Grafana] Changing 2 datasources at the same time

Hello, I was wondering if anyone knew if there is any mechanism that would allow me to change 2 datasources at the same time? I have Loki and Prometheus in the US and EU and today I have 2 varialbes on my dsahobard to swap between for each. But if there is any mechaisn to just select US or EU and it would use the appropiate datasource for that region?

I achieve this using stacked variables where the top one contains the regions that can be viewed (EU, US etc), and the others filter the exact datasource using a regex and the region variable choice.

Oh this is brilliant, i didn’t know you could do that! thank you