Hi Tibor,
this particular function is not yet available in VehicleController, however, any TraCI vehicle command can be easily added to it. Have a look at
http://sumo.dlr.de/wiki/TraCI/Change_Vehicle_State for a full list of available commands. Veins uses "change edge travel time information" for its changeRoute method. Depending on your use case other commands might be more suitable.
When you know which particular features you are missing I kindly ask you to open a feature request at
https://github.com/riebl/artery/issues/new.
Best regards,
Raphael