collection that represents all the window panes for the specified window.
expression.Panes
expression Required. An expression that returns a Window object.
Remarks
For information about returning a single member of a collection, see Returning an Object from a Collection.
Example
This example splits the active window in half.
If ActiveDocument.ActiveWindow.Panes.Count = 1 Then _
ActiveDocument.ActiveWindow.Panes.Add
This example activates the first pane in the window for Document2.
Windows("Document2").Panes(1).Activate