Может быть у нас да, но не в Европе. Там часто встречаются сочленённые четырёхдверки только с одной кнопкой открытия первой двери, а остальные двери можно только разблокировать.
They are the four white ones to the right of the steering wheel. At the time of the photo shoot, they had already been taken out, because the trolleybus had already been shut down (in Brno). First was for the first door, second was for other doors. Third was for unlocking doors. The last was for closing doors or signaling for closing doors.
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