I forget but I don't think it was that difficult.
From the Id control menu, enter 13 - Network Manager (see pic). From there, select the WiFi network you desire, nominate the relevant password / key via Properties and select the check box for automatic connection.
I'm pretty sure that's all I did and the network connection is re-established routinely without drama on a reboot. I can access the unit via Panel and VNC just fine. For Gizmo, I need to nominate the <IP Address>:<Port No>. For some reason the access key doesn't appear to work over WiFi (in my case).
Note that I'm using a USB Id on a non-Intel device. Even so, as long as you've got a unit with functional WiFi, I'd expect you to have the same setup experience that I've had.