Android Question How to create a system to read/write settings from PC to phone?

If you want to do that automatically without knowing ip addresses, then you could always look at these cross game examples (B4A, B4J, B4i) and just adapt them for your needs.

You could also adapt your own MQTT on device solution or just use direct IP addresses. I personally I used to use the game example to transfer data, that why I created it in the first place, transferring data from my development PC to my then test phone.

There are loads to solution for your question

Or this: https://www.b4x.com/android/forum/threads/b4x-b4xpages-network-asyncstreams-b4xserializator.119011