View tab > Window panel

Use the options in the Window panel to arrange and open model windows, and to specify the active window.

User Interface

Use the options on the User Interface menu to display or hide additional toolbars, windows and the browser. Select from:

New

Click this option to open a new window for the active model. It becomes the active window and, initially, shows the default top view of the model. You can change the view using the other options on the View tab.

Arrange & Switch

Use the Arrange & Switch menu to help you manage your open windows. It controls how they are displayed and which is the active window. Select from: