Can Grafana templating support to add instant query variable for prometheus?


I am using grafana to display the monitor data from prometheus, but one thing is very bothering me about how to create query variable correctly in grafana.

I found that variable query in grafana for prometheus use query_range, and the time range is got from dashboard picker. But this is not what I want, I expect the variable query should be instant instead of range, because sometimes we will change the label, and want it to be reflected to grafana as soon as possible, but query_range will keep the old label as long as time elapsed.

so is there a way in grafana templating to use instant query variable for prometheus? My Grafana version is v6.5.2

best regards