$ lb-member-list -i 12347 <Member: id=33385, address=192.168.0.1:80> <Member: id=33388, address=192.168.0.2:8080> $
You just specify id of the Balancer you're working with (in our case it's 12347) and get a list of members attached to it.
To add a new node to the Load Balancer you need to know its IP and port and pass it to lb-member-add tool:
$ lb-member-add -i 12347 192.168.0.3:8080 $
And, finally, to remove a member from Load Balancer, use lb-member-remove:
$ lb-member-remove -i 12347 33388
In this case we have to specify id on the Load Balancer and id of the member we're removing (id of the member could be obtained using lb-member-list.