For the Automatiq system, it helps to start with this video:
You can find the Quick Start Guide for your bike here:
In the event that you need to pair the CO controller to the hub, there is a button on the hub that you can depress for a couple of seconds--then press the center button on the CO controller for 3 seconds. Instructions are here: https://support.enviolo.com/hc/en-us/articles/360014553219-AUTOMATiQ-CO-CLiQ-Pure-controller
Here is Enviolo's quick start video for the CO Controller. https://www.youtube.com/watch?v=0rGoJTxLPKg
The center button is used for pairing the device. The up and down arrows are used to decrease and increase cadence respectively. We do however recommend installing the app and updating the firmware first. While not a requirement, firmware updates are recommended to offer the best shifting performance.
If you're on Android, you can find the app here: https://play.google.com/store/apps/details?id=com.enviolo&hl=en_US&gl=US
The Apple version can be found here: https://apps.apple.com/us/app/enviolo-automatiq/id1451614500