MKR1300&ESP8266 (ATcommands)

Good day everyone!
I tried to combine Lora and WiFi in my system.
The general aim is to send sensor data first via LORA then using UART (ATcommands) to the WiFi module
and finaly visualize it using ThingSpeak.
As I have many ESP8266 based boards I don’t plan (untill now…) to buy MKR1010.

I thought to use and adopt examples in ThingSpeak library, particuliary “WriteMultipleFields” (Thingspeak\ESP8266\via AT commands)
unfortunatelly these examples don’t work on MKR1300 board.
I kondly ask for information/ examples for AT communication between MKR1300 & ESP8266