Hi,
You could use a Worksheet_Change Sub to kick the user out of A1:A4
should they ever try to click into any of those four cells.

If that would do then just paste this into that worksheet's code
module...

Private Sub Worksheet_SelectionChange(ByVal Target As Range)
If Not Intersect(ActiveCell, Range("A1:A4")) Is Nothing Then
Range("B1").Select
End If
End Sub

Ken Johnson