How should an organ's (61-key) manuals align with its pedalboard, left to right?
Symmetrically?
By centering a D from the manual on the middle D pedal?
Neither the AGO nor the British online specifications say explicitly. The British diagram seems to self-contradictorily suggest both of these options. (I'm in the New World, so I'd prefer a north american standard.)
Related: Linking organ pedals to a keyboard