Well I was messing around with some ideas to have panels slide in and out and found a few tricks we can use with the current xLobby tools until we officially build-in these types of screen effects. On the next build there will be several examples on how to do this. You can build panels that come from left, right, up or down. Add sound effects, load buttons at once or in a segmented fashion 1 at a time. Here are a few videos.
Wes Black