Please. For professional animation, sometimes it's better to not have the software automatically tween between keyframes. I would like to request the ability to turn off the auto-tweened feature or may interactively choose what is auto tweened and what is not.

It is sometimes better to pose our characters or objects and manipulate them frame by frame to achieve the motion we want. This would allow us to be able to fully control the timing and animation quality without having to spend so much time fixing, incorrectly interpolated tweens.