If you have the track simply click on track name in 'content-tracks / then click on hockenheim_2018 folder- then click data folder. then add the cameras.
Thank you Safi for your great work on bringing more cameras to AC Tracks.
@Rosario94376, all you have to do is rename the cameras to cameras_1 and cameras_2. Always make sure your cameras are sequentially numbered.
The first set always should be cameras.ini, then cameras_1.ini, cameras_2.ini, and so on.