You can use Assistant Editors to work with many parts of a document at the same time. To show an Assistant Editor, click the Add Assistant Editor button (+) at the top right of the Turner window, choose View > Assistant Editors > Add Assistant Editor, or press Command-Option-Return.
Review related content in different parts of a document side by side.
Copy and paste text and other content from one part of a document to another.
Search for words and phrases in an Assistant Editor without losing your place in the main editor. See Finding and Replacing Text to learn how to search for words and phrases.
Insert cross-references to provisions by clicking them in an Assistant Editor. See Using Cross-References to learn about cross-references.