The icon well
The icon well in a List window is only visible if a single item is selected in the list. If visible, you can use it to access the following features quickly.
Double-click the icon in the icon well to open a Viewer if the currently selected item is a file.
Double-click the icon well to open a new List window containing the contents of a currently selected folder.
Control- click or right click the icon well to show a menu containing the following commands: