Private Sub Workbook_SheetBeforeDoubleClick(ByVal Sh As Object, ByVal Target As Range, Cancel As Boolean)
If Len(Sh.Name) > 1 Or Target.Column > 1 Or Target.Row < 5 Or Target(1) = "" Then Exit Sub
Cancel = True
Target(1, 2) = Val(Target(1, 2)) + 1
If Target(1, 2) = 11 Then Target(1, 2) = "Gratuit"
End Sub