ssh hostname missing and why forced entry of local port nr?

Where do i enter the ssh hostname in the connection dialog, there is only space for the ssh username? I cannot build my ssh tunnel. I've tried root@111.111.111.111 format in this field, however I always get Socket error on connecting. WSAGetLastError return 10061($274D) back. 
Additionally, why do I need to enter a local port nr, will the application not take care of that?

We are trialling with  view to buying licenses..but only if we can connect. Running of a local instance it looks nice