Private Sub Worksheet_SelectionChange(ByVal Target As Excel.Range)
If Not Intersect(Target, Union(Range("D3:P3"), Range("D7:L7"), _
Range("X5:BB5"))) Is Nothing Then
If Target.Count < 50 And Target.Rows.Count = 1 Then
If Target.Interior.ColorIndex = 23 Then
Target.Interior.ColorIndex = xlNone
Else
Target.Interior.ColorIndex = 23
Target.Value = "N"
End If
End If
End If
End Sub