The driver can pick out the method of the push which can be- forward or reverse, park, neutral push and sport. The selected equipment sets the gear ratios along with the timing with the meshing instantly. Computerized gearbox will come only with 2 pedals since it doesn’t need clutch pedal. https://erickyxsng.mdkblog.com/39750267/new-step-by-step-map-for-automobile-gearbox