Programming LoRa-E5 with Arduino, LoRa-E5 mini Point to Point Comminucation over 24 km

Very cool project!! Any of you have been able in the same project (or any) using LoRa-E5-Mini along with ArduinoIDE to use another UART than the #1 (used with USB serial link)? I’ve tried to initiate UART2 as well as LPUART, no success at all!