How to Enable GPIO7 and GPIO14 as PWM8 and PWM7 on Xavier-Nx module

[Andrey1984]

Hi guys, how is it going?
Could you extend what are the steps if the requirement is to get 4 PWM on the default devkit board with default stock OS, please?
linked thread

How to use PWM on Xavier NX

@JerryChang Could you extend how to get 4 pwm total on a just reflashed Jetson devkit NX board, please? Will it require reflashing or just will work with jetson-io tool? Thank you very much! Could you also point out at the other thread which exactly is A5, A6 pins at the PCI-e image, please?