Live editor in ue4

Hi there, I have been attempting to utilise the live editor of ue4 so I can set up an old computer with a listen server on it for myself and a couple of friends. Only issue is, after enabling the plugin, I have no idea how to use the plugin.
Could someone tell me how I can a) set up my old computer with a live editor listen server and B) be able to access it (probably with hamachi) globally.
Thanks, Superical