I am not quite sure your question,you can create 64 sprites on screen...
The new version of sprite engine has a new class name "TTileMapSprite",it contains this feature(property Tile,maybe this is you want).
But i'm no plan when to release it.
It use different inheritance structure i need rewrite all demos,and since Asphyre eXtreme 4 will release soon so i don't want to rewrite sprite engine and all demos again.