Adding this solution now, as it took me an age to find out how to do this. Hopefully it will save someone else some time. Under ssh options, select "Advanced Options". Then under option type "ProxyCommand" and under value add "ssh -W %h:%p jump_off_box_name" Also for a maintained version of Pac Manager try the Ásbrú fork at https://github.com/asbru-cm/asbru-cm
Try Ásbrú https://github.com/asbru-cm/asbru-cm
Thanks +1