The next release of RHQ (4.11) will have the ability to push agent installation to remote machines via SSH. You will be able to do this via the GUI and the remote CLI. I published a blog post on this a little while ago - read this (there is a link to a demo showing this feature in the GUI in this blog post as well): http://management-platform.blogspot.com/2014/04/completed-remote-agent-install.html