Just looping back on this... (sort of).
I found the example of using a Core device as a LoraWan gateway, and it seems the code is only availe to load into the M5Core.
Being as the code was for an older version than the CoreS3 I have, I have looked around for the UIflow version of that example, but am unable to find it.
Does anyone know if it existed and where it might be, so that I can compare it to what is available in UIFlow2 and update it?
Many thanks,