A viewport is like a window that you can view a part, or all, of the drawing in the model space from. You can create just one or multiple viewports in the same layout. Also in case you want to focus on specific parts of the drawing, it is possible to create viewports with different custom shapes to capture exactly the desired region of the drawing (even if the desired region has an irregular shape ). Moreover the custom shaped viewports grants the flexibility of placing multiple viewports, in addition to the ability of adding different styles of title blocks and notes. Also, each viewport can have a separate scaling factor. In this section, we will learn how to create viewports with different shapes and how to properly adjust their related options and settings.