title: Cross filtering in GRAFANA
body: <p>I need to implement cross filtering in Grafana (i.e. by clicking a data point in one dashboard tile to have all dashboard tiles automatically filter on that value)<br />
  I know cross filtering is not currently available in Grafana, but I was wondering if there is a workaround to get the job done.<br />
  Being such a basic need, I'm sure someone has done this before.</p>