Well, if it is so simple and direct why don't you just add here the procedure to do so ? Should be a couple of lines. There are many requests for such setting and NO answer from Omega team. Just some "bla-bla's" like yours above. No offense, but get me some real answers. Until then OMEGA is still a DUD !
You don't need an AP to connect to Omega. The serial/USB console connection is for that. You need to power on the system so the USB is the evident solution.
You are confused about the network setup. Take some classes or read more.