The View menu is a 3D Canvas specific menu.
View Selection
Opens the View Selection window which provides several scene view configurations.
Materials Panel
Allows you to show/hide the Materials Panel.
Components Panel
Allows you to show/hide the Components Panel.
Hierarchy Panel
Allows you to show/hide the Hierarchy Panel.
Primary Toolbar
Allows you to show/hide the Primary Toolbar.
Edit Toolbar
Allows you to show/hide the Edit Toolbar.
Animation Toolbar
Allows you to show/hide the Animation Toolbar.
Status Bar
Allows you to show/hide the Status Bar.