Class A Receive window configuration

[Bhavit]

I am using Lora nano gateway example code to send data from 1 end device to things network.

• I want to know how can I reconfigure the end device's Rx1 and Rx2 delay timings?

• MAC commands (RXParamSetupReq, and RXTimingSetupReq) are available to reconfigure but how to use them?