DHTMLX layouts vs EXTJS layouts

EXTJS is known for outstanding layout managers. I feel DHTMLX is lacking in this area. Are you going to include support for a more expansive library in this area?


dhtmlxLayout allows to create schemes of any complexity ( by using nested layouts, it possible to define nearly any structure of views ) , where each element can contain a custom HTML content or any of components.
Can you please point which functionality missed in case of dhtmlxLayout ?