Customizing AutoCAD provides many benefits that can increase your productivity and make your drawings have a consistent appearance. Customization can be as simple as creating a block that can be used in many drawings over and over again, such as a title block, or customizing the user interface with the Customize User Interface (CUI) Editor. For information about customizing the user interface, see Work with the Customize User Interface (CUI) Editor in the Customization Guide.