You can easily restore the last view displayed in each viewport. It is often easier to restore a previous view than to redefine the view. You can restore up to 10 previous views in a viewport. These views include not only zoomed views but also views that have been panned, restored, or set to perspective or plan view.
Previous views are not retained when you exit the current drawing session. To recall a view across several sessions, you can save the view by name with your drawing.