Change Visibility action can show/hide/toggle visibility for certain element.
If you select the "Include elements within the area" option. All elements within the element's area will perform the same action, as long as those elements are not covered by the selected element. This will be useful if you wish to show/hide a batch of elements in an area.
At the bottom of the window you can also see an "Animation" option, turning on this option will easily apply animation on the visibility changing. You can also specify the duration of the animation (fade in/fade out).
This action is available for all elements.