UI, Camera Controls window; adition of parameter "control gain" as a dial or perhaps on/off button so you can then make micro (and macro?) adjustments to camera rotation and transition using the existing canera parameter dials and control icons.  There are other ways to achieve similar objective for instance implementing alignment and orientation using target object or ground plane vertex node snap.

USE CASES:

 Content Development - This would be especually helpful when setting joint parameter and in setup where precise alignment of joint centers to topology is achieved through camera orientation.  It would also be helpful in improving morph creation precision.  Artist - The feature would greatly aid scene creation effeciency by improving the speed and precision one can tile and orient props in scene.