(RESOLU)Simplifier un code (afficher masquer les lignes)

If Not Intersect(Rows(Target.Row), [M1]) Is Nothing Then
      Application.ScreenUpdating = False
      n = CInt([M1])
      Rows("4:13").Hidden = True
           
      Select Case n
        Case 1
            Rows("4:4").Hidden = False
        Case 2
            Rows("4:5").Hidden = False
        Case 3
            Rows("4:6").Hidden = False
        Case 4
            Rows("4:7").Hidden = False
        Case 5
            Rows("4:8").Hidden = False
        Case 6
            Rows("4:9").Hidden = False
        Case 7
            Rows("4:10").Hidden = False
        Case 8
            Rows("4:11").Hidden = False
        Case 9
            Rows("4:12").Hidden = False
        Case 10
            Rows("4:13").Hidden = False
      End Select
 End If