Private Sub Worksheet_SelectionChange(ByVal Target As Range)
ActiveWindow.Zoom = IIf(Intersect(ActiveCell, [C4]) Is Nothing, [MonZoom], 140)
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, [C4]) Is Nothing And [C4] <> "" Then [A1].Select
End Sub