Use View Holders to display one View within another View. You can also reuse a View consisting of various components in multiple locations, within other views. Simplify View updates by modifying a component used in a View Holder in the original View containing the changing component. The change appears in all Views referencing this View.
Note You cannot create a circular reference where a View is asked to show itself in the View Holder it contains.
Use View Holders to do the following:
Contain other Views
Display a Record
Display a Uniform Resource Locator (URL)
Couple the View Holder with a menu, button, or image to display dynamic content
Note Use the Display View action with any menu, button, or image components to display a View in the View Holder.