private void OnDeleteLayout()
 {
     if (m_Layout != null)
     {
         SubWindowTreeDeleteLayoutWizard.CreateWizard(m_Layout);
     }
 }
        //private List<string> m_Layouts;

        public static void CreateWizard(SubWindowLayout layout)
        {
            SubWindowTreeDeleteLayoutWizard wizard =
                ScriptableWizard.DisplayWizard <SubWindowTreeDeleteLayoutWizard>("Delete SubWindow Layout");

            wizard.m_Layout = layout;
            //wizard.m_Layouts = layout;
        }