I'd like to see some kind of "Bézier curves" effect for the Pan and Zoom effect in regards to motion. By "Bézier curves" I'm not talking about the image contrast filter. I'm talking about making animation (Moving left/right/up/down or zooming) more smooth by having exponetial start and end between every keyframe.
Right now, If I have a logo with the pan and zoom effect activated, using 4 evenly spaced keyframes, If I put 50% size on keyframe 1 and 2 and I put 100% size on Keyframe 3 and 4. The Logo will go from stationary to full speed when it reaches keyframe 2, when it reaches keyframe 3 it will come to a "sudden" halt, which is very mechanical in appearance.
Here's a videolink (youtube) where I illustrate what I mean
I wouldn't mind full control (editing the curves myself), but it would require more work to implement in terms of GUI, so I'd settle with a "Lazy Man's" version where maybe one would control the amount of smooth motion with a slider, and it will be applied to all keyframes next to each other that differ in any way.
If the Lazy Man's version is ever implemented, make it so that the slider accepts negative values as well as positive, and 0 is default (0 = no motion smoothing)