Put the following macro in the same folder as Greg's macro, then instead of using (say)
.Bookmarks.Add "wholename", oRng
call the macro e.g.
FillBM oTarDoc, "wholename", oRng
Repeat for each named bookmark. If the target bookmark doesn't exist it is simply ignored.
Private Sub FillBM(oDoc as Document, strBMName As String, strValue As String)
Dim oRng As Range
With oDoc
On Error GoTo lbl_Exit
Set oRng = .Bookmarks(strBMName).Range
oRng.Text = strValue
oRng.Bookmarks.Add strBMName
End With
lbl_Exit:
Set oRng = Nothing
Exit Sub
End Sub