How can we use multiple devices with the same platform?

I have both experimented and searched the net, and have seen people ask about this, but have not found a solution.

I have several locations that I would like my HA install to gather some information from. They use the same hardware and software. They are all connected by site-to-site VPN.

What I would like is to use things like asuswrt and obihai to keep an eye on those things, but I just can’t get the syntax right. I have tried naming them, adding _1 to things - pretty much racked my small and weary brain. If I can get one of the two working, the same logic should apply to the others.

Attached is the closest that I have been able to get that doesn’t throw an error, but it also doesn’t show the second Obi device. I know the VPN is routed correctly to HA, as I can reach a remote Blue Iris server which is correctly integrating. But I can’t get multiple things formatted.

Does anyone know how to do this, or am I just banging my head against the wall?

I figured out the Obihai devices, but not asuswrt. Does anyone know how to do this?

Obihai was easy, but the same syntax doesn’t want to work for Asus.