Tile Based Game Depth Sorting

Hey, I’ve been playing around with ActionScript 3. They have a new way of placing clips onto the stage, “addChild(clip),” which automatically places the clip onto the stage with it’s own depth. So here’s my problem, when making a tile based game, I have to constantly depth sort to make sure the object lower on the screen has the higher depth than an object higher on the screen. Pretty much, their depth depended on their y-coord. Does ActionScript 3 still let us play with depths? And if yes, how?

Can anyone help?
Thanks