Routing Cluster Alert Notifications with new UI

Has anyone been able to use the new UI to create a new alert rule that will route "cluster" alerts? Or is it possible to switch back to the old UI so that I can do this again?

Here's LM's documentation on it: https://www.logicmonitor.com/support/cluster-alerts#h-routing-cluster-alert-notifications but it doesn't seem to work once they forced me to use the new UI.