The MG ZS Electric is equipped with an Electronic Parking Brake (EPB), as shown in the picture below.
To release the electronic parking brake, press the button down and it will be released. Then, turn the gear knob to D (Drive) on the extreme right and off you go!
To reverse, turn the gear knob to R (Reverse) on the extreme left.
To turn off the vehicle, press the knob that states P (Park). The small parking brake button (it's the "P" sign with a circle around it) will be lighted up. You'll see the same sign on the button lit up on the dashboard.