Is the only way to open and close the doors on a Rotem cab car with the keyboard? Where is the physical (virtual) switch to do it? Looks like the CTC-3 cab car is the same way?
On US trains,* doors are handled by conductors (guards), not the engineer. *The exceptions are subways and subway-style EMUs like the MTA's Budds
Even in the MTA Budds, while techically you can operate the doors from the cab, it's usually a second men doing it from the cab.