The same content is able to appear in multiple folders at once, if there is content relevant to more than one area of the site.

1. Navigate to the piece of content you want to display under more than one folder.
2. Open it and click on     Add to Another Folder in Area Two.
3. Select the folder you want to add the content to in addition to the one it is already in.
4. The piece of content will now show in both folders.