This command adds provisionable servers to an existing server group so you can more easily perform management operations on multiple servers. See create group on how to create a new server group.
Add one or more servers to a server group:
add group group server server[,server...]
Add all the available servers to a server group:
add group group server all
all – Add all servers to a server group.
group – The name of a server group.
server – The management name of a server to be added.