Hi @oily_wagg!
Connecting with a cable wont do it less portable and it will be a lot more simple to configure, more reliable and the sound quality will be better. Of course, the latency should be better too …
Regarding the webconf tool, if you are using the latest SD image:
it should work out-the box. Check the Wiki for detailed instructions:
You don’t need to enable nothing. The web server is running all the time 
Same for Jack Audio. It’s working from boot time as it’s the core audio system of Zynthian.
Kind Regards!