Word 2016 - VBA open Navigation pane and set display to "Results"

Question

Using VBA, how do I set the Navigation Pane display to the "Results" group rather than "Headings" or "Pages"?

Here is the code I use for auto-opening a document to the Navigation Pane.
Sub AutoOpen()
Application.GoBack
Selection.MoveDown Unit:=wdLine, Count:=10
Selection.MoveUp Unit:=wdLine, Count:=10
Call NavPaneSearch
End Sub

Sub NavPaneSearch()
' NavigationPaneSize Macro
' Charles Kenyon 18 October 2018
Dim iWidth As Integer
iWidth = 218 ' change to suit
With Application.CommandBars("Navigation")
.Visible = True
.Width = iWidth
End With
End Sub

Thank you!

Answer 1

The navigation pane can be opened with:
ActiveWindow.DocumentMap = True

However, this is a simple property. There is no object to represent the document map. So alas, what you want does not seem to be possible unless you go to extremes.

Answer 2

form subclassing. processing windows messages of the window involved. spy++. I did a quick test and I'm not even sure that would get you there.
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