I'm currently using ES 6.7 stack (Basic License) & i wanted to understand if i'd need a paid subscription of X-Pack to be able to use Watcher for alerting purposes ? Is watcher included as a part of Basic / OpenSource version or is it for paid subscribers only ? If it's free, how do i go about enabling watcher support for ES 6.7 ? I'd really like to see Watcher or some sort of native alerting feature in Kibana. I feel this key feature is missing in Kibana when compared to Grafana.