Range.PreviousSubdocument Method (Word)
Moves the range to the previous subdocument.
Syntax
expression .PreviousSubdocument
expression Required. A variable that represents a Range object.
Remarks
If there isn't another subdocument, an error occurs.
Example
This example switches the active document to master document view and selects the previous subdocument.
If ActiveDocument.Subdocuments.Count >= 1 Then
ActiveDocument.ActiveWindow.View.Type = wdMasterView
Selection.EndKey Unit:=wdStory, Extend:=wdMove
Selection.PreviousSubdocument
End If