Private Sub Workbook_Open()
Application.OnKey "{RIGHT}", "HighlightRight"
Application.OnKey "{LEFT}", "HighlightLeft"
Application.OnKey "{UP}", "HighlightUp"
Application.OnKey "{DOWN}", "HighlightDown"
Application.OnKey "{DEL}", "DisableDelete"
End Sub
Private Sub Workbook_BeforeClose(Cancel As Boolean)
Application.OnKey "{RIGHT}"
Application.OnKey "{LEFT}"
Application.OnKey "{UP}"
Application.OnKey "{DOWN}"
Application.OnKey "{DEL}"
End Sub