For a specific pane, click the 
icon in the upper right corner of the pane.
For all optional panes, click Show All With Auto Hide On on the View menu.
Hiding Panes |
When you want one or more of the optional panes (the Printed Item Preview pane, the Selected Print Job Details pane, or the Selected Inventory Event Details pane) to automatically be hidden when they are not in use, use the Auto Hide feature. When you use this feature, the optional panes are minimized to an edge of the History Explorer window, so that only a tab that contains the pane's title is visible.
When you need to view the contents of the hidden pane, point to the pane's title tab to temporarily expand the pane to its usual size and display the contents of the pane.
You can use the Auto Hide feature for a specific pane or for all optional panes, as follows:
For a specific pane, click the icon in the upper right corner of the pane.
For all optional panes, click Show All With Auto Hide On on the View menu.
To turn off the Auto Hide feature for a specific pane, point to the hidden pane's title tab. When the pane is displayed, click the 
icon in the upper right corner of the pane.
To turn off the Auto Hide feature for all panes, click Show All on the View menu.