Private Sub Worksheet_SelectionChange(ByVal Target As Range)
On Error GoTo Fin
If Target.Count > 1 Then Exit Sub
If Not Intersect(Target, [H6:H29]) Is Nothing Then
Application.EnableEvents = False
If Target = "" Then
Target = "X"
Cells(1 + Target.Row, "C").Select
Else
Target = ""
Cells(Target.Row, "C").Select
End If
Application.EnableEvents = True
End If
Fin:
End Sub