To Show All Views
To display all four views for modeling, perform one of these actions:
• Click 
Show All Views on the Graphics toolbar.
Show All Views on the Graphics toolbar.• Click 
Style > Show All Views.
Style > Show All Views.• Right-click the graphics window and choose Show All Views from the shortcut menu.
Show All Views from the shortcut menu.To return to a single view, perform one of these actions:
• Click Show All Views on the Graphics toolbar again.
Show All Views on the Graphics toolbar again.• Click Style > Show All Views again.
Style > Show All Views again.• Right-click the graphics window and choose Show All Views again.
Show All Views again.