If you want to publish the same content in more than one place on the website, but only wish to update it in one place, you can create a reference. A reference can be placed in two different ways, either using the Reference element (which allows you to select multiple content elements as references) or by copying an element and the pasting it as a reference.
The easiest way of creating single references, is by simply copying the content element and then pasting as a reference.