Currently, all the Vehicle Commander can do is the same as any Commander could do prior to the invention of the printed circuit. Actually, he can often do less than Veh. Commanders could do in Vehicles designed in the 50s and 60s.

Therefore, I suggest adding the following (nowadays common) abilities for the Commander.

Gun pointing override: When switched on, the Turret will automatically rotate to match its point of aim with that of the Commanders sight. It will then stay slaved to the commanders sight until GPO is turned off.

Emergency reflexive point + shoot (Panic Button): Single button press, when activated the Turret will automatically ROTATE to match point of aim with that of Commanders Sight, and remain pointed in that direction for three seconds, before automatically returning to where the gunner had it pointed.
Additionally, when NOT on manual fire, pressing EPS will result in the turret pointing and immiatelly firing the main gun once pointed where the commander wanted.

Laser Rangefinding: has been asked often, this is yet another ticket, because this is one of the most important features for Vehicles.

Defensive Systems: Automatic smoke launchers, threat warning indicators, threat response systems (such as SHTORA) that automatically point the main gun in the direction of a detected missile launch or large muzzle flash.