The reusable content element can be used when you want to share the same content on multiple pages of your website. With the reusable content, you will need to update the content only once, and the change will be automatically updated on all pages.
To add Reusable Content, select the Layouts tab, available in the Build menu, and drag and drop the element on a suitable place on any page. After placing the element, hover over it and click on the wheel icon to setup the Content Preset.
Select { New Preset }, type a unique name and save it. Click Update to proceed with setting up the reusable element. After you created your preset and save, you will see a container named "Empty Reusable Content - Preset Name".
You can then add any type of content to the empty area, the same way you would add a Text and Image element or an Image Gallery to your page. Moving existing content is as well an option.
Upon page refresh, the grey placeholder will disappear and the reusable content's preset will blend with the other page elements.
Now that you have a reusable content container with some content added, go to another page and again add a Reusable Content from the Build menu. Choose the desired already existing preset and click Update. The content from the selected preset will be automatically added on the page. Now if you edit the content for the selected preset on any page that it is located, the content will be automatically updated on all pages that you have the same preset on.
You can only add the same preset once per page. If the preset is already present on a page, and you try to add a new reusable content element, you will not be able to highlight and select the same preset from the drop-down.