Private Sub Worksheet_SelectionChange(ByVal Target As Range)
On Error GoTo Fin
If Target.Count > 1 Then Exit Sub
If Not Intersect(Target, Range("B6:B183,C6:C183,F6:F183,G6:G183,H6:H183")) Is Nothing Then
Début = Left(Cells(Target.Row, "A"), 1)
If Début <> "I" And Début <> "V" And Début <> "" Then
If Target = "" Then Target = 1 Else Target = ""
Cells(Target.Row, "A").Select
End If
End If
Fin:
End Sub