The Drag and Drop functionality allows you to click on a selected chunk of code and drop it anywhere in the editor. This not only helps you work more efficiently, but also helps minimize the errors that are created when editing or cutting/pasting your code.
Drag and Drop is available in PHP and JavaScript editors.
To Drag and Drop a chunk of code in an editor:
For more information on editors see the Editors topic in the Workbench User Guide.