Aescripts Expression Timeline v2.1.002 (Win, Mac): ExpressionTimeline ExpressionTimeline allows you to assign multiple expressions to properties, and each one remains in active status for a set time. Instead of abrupt changes between expressions, you can smooth change from one expression before moving to the following. Furthermore, you can set time intervals without active expression to ensure that the keyframed movement is considered.
New in Version 2
The second version of ExpressionTimeline comes with a more user-friendly interface, where the timeline size is automatically adjusted to fit the panel size meaning there's no need to alter it manually.
Example
Smoothly shift from one expression to. Another. In other words, if the first expression is in use from frame 0 to 50, while the second is active from frame 50 to the end of the expression, that smooth transition from the wo expressions will take 1tenframes extended and continue from frame 45 to frame 54. In this case, it is followed by the other one (expression 1.) up to frame 45. After that, until frame 54, it seamlessly returns to its original position and begins to wiggle (expression 2.).