Graph for single host only


I’ve been using Redash and want to try out Grafana as alternative.

I have a few graphs up already with hostname variables setup to view graphs per host.

How do I add a graph to display only for a single host?
Meaning, Only to display for hosts where applicable or where hostname is specified in the query.

I have an HTTP check for a webpage, which displays fine for the host where it supposed to work, but the graph also gets added to hosts which do not have this page.