the documentation and license file have the information... change the loader information similar to node1, but for the node2 serial number...then the same option 4 to initialize, then when the wizard comes up specify you want to "join" the existing cluster on node1... then make sure to "license add" the keys specific for the serial number of node2... for example, there is one base license, but you need 2 cifs licenses (one per node since it is node locked by serial number).
