Window > Perspective > Save Perspective As....
Perspectives offer pre-defined combinations of views and editors. To open a view that is not included in the current perspective, select Window > Show View from the main menu bar.
After adding a view to the current perspective, you may wish
to save your new layout by clicking
Window > Perspective > Save Perspective As....
Views
Detached views
Perspectives
Moving and docking views
Detaching views and editors
Maximizing a view or editor
Resetting perspectives