public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();

        DialogPanelScript ds = (DialogPanelScript)target;

        if (GUILayout.Button("Show/Hide Dialog Panel"))
        {
            if ((bool)ds.IsHidden())
            {
                ds.StartCoroutine(ds.ShowDialogPanel());
            }
            else if (!(bool)ds.IsHidden())
            {
                ds.StartCoroutine(ds.HideDialogPanel());
            }
        }
    }