City Sample (SmallCity map): how can I edit the traffic lights?

Hello! I need to edit the CitySample traffic lights, in particular the red/yellow/green lights durations and I’d like to edit the pedestrian traffic lights, since now it’s based on US (I guess) adding the yellow light.
I really can’t find a way to edit the traffic lights!!

To edit the traffic light durations in CitySample, you’ll need to modify the traffic light controllers in the simulation’s code. Locate the script or configuration file responsible for traffic signal timing, which typically includes settings for red, yellow, and green light durations. For pedestrian signals, adjust the corresponding parameters for pedestrian lights and their timing, ensuring they align with your desired settings. If you’re using a specific platform like Unity or another simulation tool, consult its documentation for instructions on customizing traffic lights.

Hello and thank you for your reply. It’s not clear how to do it and how to access these settings