We haven't added that yet. 2.4 happened to be a complete code overhaul. As the plugin evolves and the users increase, we have to shift our plans a bit. The plans evolve along with the plugin.
We'll still do this, but as of now, this requires jQuery. Any jQuery we use, can conflict with a lot of poorly made themes. So, we've held this back till BuddyPress updates to 1.7. It promises new and better theming for BuddyPress that will work with any WordPress theme. That's when it makes sense to play with the UI.
So, we'd all have to wait till BuddyPress 1.7 and then some more.