I don’t have a v2, but I did read a thread about the calibration sensor.
In the thread, they say the sensor is “a capacitive or inductive distance sensor”. A capacitive sensor might work on glass, but an inductive sensor would not.
Based on the calibration instructions, it seems like you could calibrate using the existing bed, switch to the glass bed, then use the z axis offset step to adjust for the height difference between the two.