Can I monitor 3 non-clustered Proxmox servers with Grafana

I am running 3 non-clustered Proxmox servers. I can’t afford putting a cluster together.
So right now I am monitoring all 3 on separate Grafana containers. I’m using Node Exporter and Prometheus.
Is there a way I can setup 3 separate dashboards on 1 or the Grafana servers to monitor them?

Do I need a different way to send the data to Grafana?

Thanks!