How FCM works-2022 Model-QATAR

Hello Friends,
I bought a brand new Eclipse cross 2022 a month ago in Qatar, I would like to know how the FCM system works, I have many questions on my mind, but unfortunately no proper reply from the local dealer! example:
1- At which speed it should work?
2- At which distance with the objects it will work?
3- Is it really effective?
4- The Vehicle has only one button for the FCM and no adjustment, only a long press to make it OFF and a similar one to make it ON again.
5- The operation manual is general, and is not specifying functions as per region or available features on the vehicle.

Thanks in advance.