Here 2 VMs can be added to a cluster (Enterprise version)

The “Prepare cluster” button opens the corresponding ports in the firewall.

Individual VMs can be added to the cluster via the cluster list by specifying a name and IP address.

The cluster IP (including the netmask) enables access to the cluster via a central IP address.
If a VM fails, the cluster IP is automatically set to the available VM.

The status of the cluster can also be displayed