When a design is open, several default view layouts (shown in the following figure) are provided to enable you to more easily work on specific design tasks, such as I/O planning, floorplanning, and debug configuration. Changing view layouts simply alters the windows that are displayed, which enables you to focus on a particular design task. You can also create custom view layouts using the Save Layout As command.
Note: Default view layouts are available only when a design is open.
Figure 1. Selecting a View Layout