Local Resolution by Camera

How about a toggle "Override Resolution" in the camera properties. If Off the global values in Output would be used, but if set On, an identical menu would appear inside the camera. That way aspect ratios per camera could be possible if needed.

Example: Camera A uses the global properties "1920x1080, 50%", Camera B uses an override "1080x1920, 25%". Switching cameras switches from landscape to portrait as well.