assignment of extended keyboard to GUI rather than camera number in multicam EDIT

It would be extremely useful to be able to map the extended keyboard 1 to 9 keys to relate to the 3x3, 9 camera layout in the multicam view rather than relating to specific camera angles. That way when selecting a different page of cameras in the 3x3 view the keys would always relate to the cameras / positions you see in the GUI rather than just cutting to cameras 1 - 9 regardless.