Modern Dashboard Custom Property Filtering.

I am attempting to create several modern dashboards displaying information for a few different groups of servers. I have a custom property called Grouptag that I have setup and assigned to these servers. In my modern dashboard is a table showing the node name, CPU, and RAM utilization. I attempted to filter using the global filter in the URL but the table still shows all the nodes, not just the ones with the grouptag. Am I going about this wrong? I just want a dashboard that will display a select group of nodes with relevant information. 

with the nodes