To share a docking position between panes, drag one pane to the caption of another pane. Shared docking positions help reduce the number of panes displayed at one time while providing easy access to each pane. When panes share a docking position, each pane includes a tab to let you switch between them. To display a pane in a shared docking position, click its tab.
In the following example, the picture on the left illustrates a pane's outline when it is dragged to a shared docking position. The picture on the right illustrates two panes share a docking position. All folder panes can share the same docking position.
To detach a pane from a shared docking position, double-click the pane's tab. The pane then floats in its own window, allowing you to drag it to a new position.