question about openfire hazelcast plugin

i have installed 2 openfire nodes with hazelcast plugin. Both nodes are members of cluster. And googled hard and had not find any answers:

- how can i setup xmpp session replication, cause if i shutdown one node, the users need to relogin

- how can i install one ssl cert for both nodes

- implement http session replication (openfire web interface) would be great too

Thanks