Originally Posted by RemoveB4flght

You may already know this trick but I’ll throw it out there for the new hires.

The four FCU knobs from left to right are in the same order as the airspeed, heading, altitude, and vertical speed on the PFD (or right to left if you prefer to think that way) which is why you don’t need to look at the knob to find to correct one.

Works in both seats.