Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Button2.Visible = False And Button3.Visible = False And Button4.Visible = False And Button5.Visible = False Then
Button2.Visible = True
Button3.Visible = True
Button4.Visible = True
Button5.Visible = True
ElseIf Button2.Visible = True And Button3.Visible = True And Button4.Visible = True And Button5.Visible = True Then
Button2.Visible = False
Button3.Visible = False
Button4.Visible = False
Button5.Visible = False
End If
End Sub