Would be great to be able to create folders in the hierachy view so all of one type of object could be stashed away and hidden from view. Say you're making a Sonic type game and you create a prefab of a coin you can pick up. If there are 100 coins in a level, that's a long stream of objects that take up a ton of space in the hierarchy list box. Would be great to hide them in a folder named "Coins". I realize you could probably fake this by creating an empty game object and parenting them to that, but a folder would be a nice, consistent and official way of doing things.