Allow Update Mode to be Changed Per Key in the Animation Editor

[JaythFactor]

It would be helpful to change any animation key's update mode so that cases where the type of movement changes mid-animation can be implemented.

A simple example of this would be if you wanted to create an animation that resets to the start and replays multiple times with different timings. The only way you can do this now is by creating multiple animations with different timings and playing them back-to-back or playing the same animation back-to-back with the timing programmatically scaled.

It gets more difficult when you think about "glitchy" animation which hops around the screen at times and violently shakes at others. At the moment, since we can't easily switch between continuous and discrete update modes in the animation editor, I would rather set the object's position with mathematical formulae and randomly generated numbers which emulate "glitchy" motions.

These cases can be solved via workarounds and other methods such as node nesting, but the fact that using a single animation isn't feasible in either case tells me that the animation editor is lacking some functionality.

You can also take a look at different software which has animation via key frames such as Blender and you will see that each key frame's update mode and even easing type can be changed for every key frame individually(just right click it in Blender). This makes the animation capabilities of these programs far more versatile.