Add clusters so you can monitor their nodes in the main window's nodes area:
To add a cluster:
Select Create from the option menu.
Click in the Group field and type the name of the group (new or existing) the cluster is to be added to, or choose the group from the drop-down list.
Click in the Node field and type the name of the cluster to be added.
Set the Node Is a Cluster Alias check box to the on position.
Click in the Any Cluster Member field and type the name of one node in the cluster; the other cluster nodes will automatically be added to the cluster.
Click on Apply or OK.