Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
If Not Intersect(Target, Sh.Range("A1:B12")) Is Nothing Then
For i = 1 To Sheets.Count
Select Case Sheets(i).Index
'Select Case Sheets(i).name
Case 1 To 3
'case "toto","titi","tutu"
Application.EnableEvents = False
Sheets(i).Range(Target.Address) = Target
Application.EnableEvents = True
End Select
Next
End If
End Sub