Before I go any further, I am not referring to inertial bounce.
I'm sure this is just something very basic that I've missed, but is there an expression to give a layer some sort of momentum/drift to its movement? A good example of the style of movement I'm talking about is here:
If I try to keyframe an object to follow this movement, regardless of interpolation/keyframe assistant options I can't replicate it simply. But maybe I'm using the wrong combinations?