How to find/assign CAN IDs of motor controllers?

So, our issue is this, we have the code for our CAN Talon SRXs, but we are unsure of what motor channel to enter for the motor controllers, it seems like a stupid issue and I feel I am missing something very small here. Any help is appreciated.

“When complete, make sure every device is visible in the view. Use the Blink button on each device to confirm the ID matches the expected physical device.”

https://phoenix-documentation.readthedocs.io/en/latest/ch08_BringUpCAN.html?highlight=blink#set-device-ids

Wow I can’t believe I didn’t even think to use Phoenix Tuner, thank you!