Would be nice to have this feature added as a mod or official feature. Camera blocks are supposed to be a nice tool to create cinematic shots. Their movement speed are really smooth and relative to the simulation speed, which the normal camera does not. But they are hard to aim with mouse because their Y-axis are inverted by default. The "FIRST PERSON" option are not inverted, but they don't have smoothness and their movement speed does not factor simulation speed, resulting in jittery and nauseating movement when recording cinematic shots.