I would be inclined to do somethiung like the following where you could setup the conditions for all the controls you want to process in this way. Here I have just processed those with the title '1".
Code:
Private Sub Document_ContentControlOnExitold(ByVal oCC As ContentControl, Cancel As Boolean)
Dim jCC As ContentControl
With oCC
If .Title = "1" Then
Select Case .Tag
Case Is = "a"
For Each jCC In ActiveDocument.ContentControls
If jCC.Title = "1" And jCC.Tag = "b" Then
jCC.Range.Select
Exit For
End If
Next jCC
Case Is = "b"
For Each jCC In ActiveDocument.ContentControls
If jCC.Title = "1" And jCC.Tag = "c" Then
jCC.Range.Select
Exit For
End If
Next jCC
Case Is = "c"
For Each jCC In ActiveDocument.ContentControls
If jCC.Title = "2" And jCC.Tag = "a" Then
jCC.Range.Select
Exit For
End If
Next jCC
End Select
End If
End With
End Sub