Panel Opener - this component is used on the button to show and hide UI Element, and can play the button animations.
Panel - UI Element link.
Use Button Animations - allow you to use animations.
Show Panel Trigger Name - animator trigger name which will set on show.
Hide Panel Trigger Name - animator trigger name which will set on hide.
We use such an animator so that after playing the animation back to the animation Idle. Otherwise, it will not be playing again. When the trigger is set, the animation is played and returned to Idle.