@rexrainbow It is possible to integrate some ease-in/out functions like this http://easings.net/
At the moment I use LiteTween behavior which is nice since is a combination of the sine + move_to begavior (it uses movement, size, values etc), but I like MoveTo behavior better.
Ease InOut is great for moving menu items, dropping bouncing objects, it creates a more organic/elastic feeling
The biggest problem with the LiteTween is that it rely on the time needed to move from A to B, instead of the speed and it does not have a control to "scale" the function, or define a start or end point (like acceleration and deceleration). The function is scaled depending on the time that takes