// OnInspector GUI
    public override void OnInspectorGUI()
    {
        // Call base class method
        base.OnInspectorGUI();

        GUILayout.Space(20f);
        GUILayout.Label("Button Tools", EditorStyles.boldLabel);

        //Load Prefabs Automatically
        GUILayout.BeginHorizontal();

        if (GUILayout.Button(new GUIContent("Auto Get Prefabs", "Automatically load all towers & enemies prefabs.")))
        {
            eTools = GameObject.Find("GameEditor").GetComponent <EditorTools>();
            eTools.AutoGetPrefabs();
        }
        GUILayout.EndHorizontal();

        EditorTools edTools = (EditorTools)target;

        //Stats Reset buttons
        GUILayout.BeginHorizontal();
        if (GUILayout.Button(new GUIContent("Reset Tower Stats", "Apply the default stats to tower units")))
        {
            eTools = GameObject.Find("GameEditor").GetComponent <EditorTools>();
        }

        GUILayout.EndHorizontal();


        // Custom Buttons with Image as Thumbnail
        // Tower Buttons
        GUILayout.Label("Spawn Tower");
        GUILayout.BeginHorizontal();

        CreateButton(ref edTools, "Prefabs/Tower01", "Tower01");
    }