IMVU Messenger Easter Egg - Superman Pose

You how you can sit or stand in any room in some places? Well, I found a very interesting place in Hero's Rooftop room (I think it's a basic room, 'cause I didn't buy it) and it is pretty well hidden. I could do this only once and I'm not sure how to reach that place. All I remember is that I clicked on the backround and I was flying like Superman. It is not a glitch because of the room's name and that its clearly you flying around the building. Also, not an egg, you can climb walls like Spider-Man also because of the room's name (just a bonus fact)