Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Easy UI Motion Free.
Easy UI Motion v1.1.4
Easy UI Motion allows you to animate your 2D full screen interfaces made with Unity UI, easily and visually.
Manage Opening /closing effects, or simple effects on element or groups of elements that make up your interface.
Easy UI Motion uses the new events system, that allow you to chain and manage the elements of your interface, without writing a line of code.
Two Components :
Animate your items on the following actions :
Personalized your effect :
* The easing
* The time for action
Link your motions :
* With event system (WYSIWYG)
* With build in API
Creating funny interface has never been easier, by simply adding EasyUIMotion components to the UI element you want to animate.