I don't realy know if it rather should be set as a "feature request", or as a "skin improvement". But anyhow ...
when you load the skins2, you're getting a small display screen by default, and a separate window for the playlist tree.
I wondered if it could be possible to make another round button at the right side of the skin to flip the animation, back to the playlist tree in the same window ... and all of this without having to pauze the player
I made an image of what I meant, so that you won't get too confused :