Combine multiple hosts


so basically this is my very first touchpoint with grafana, but also after searching with different keywords online and the community, I was not able to find a solution.

My Hardware:

1x Raspberry Pi 3 with ZWAVE and homebridge running
2x Raspberry Pi Zero with Pihole installed for redundancy
1x Raspberry Pi 3B+ with Plex and nextcloud running
1x Raspberry 3B with CC2531 module and homebridge running

All of them will be in a custom made case together.

I want to be able to see at the end on one window:

Is it possible to combine these information in “one” grafana window even if the source is located on different PI’s?

Thx in advance!