Variable creation with Sysdig request

[vsassady]

Hello, I tried to create a variable in Grafana with a sysdig request but this dosen't seem to work. I want to chose my Kubernetes cluster in a variable but I can't do the request. For example, when I create a panel, I can display my cluster name with "kubernetes.cluster.name" but I can't do the same in a variable.

Is there a way to create variable with a Sysdig request ?