Do you ever wish your 3D layers could join groups? For instance, if you create a cube out of six 3D layers , using the 3D Assistants, how do you rotate the entire cube as a single object? Well, there are two ways.
You could select one of the sides-maybe the front side-to be a parent to all of the other sides and then just rotate the parent. This solution works well when you want to move or rotate the entire cube as a single unit but also animate individual sides separately (maybe making the top of the box flip open ). Children can always act independently from their parents (just like in read life!) So the layer that acts as the top of the box can flip up, no problem. But if you move, scale or rotate the parent, the children will go along for the ride.
The other solution is to pre-compose all of the 3D layers you want to group together. Once they're flattened to a single layer, you must turn on both the Continually Rasterize switch (even if the layers are bitmaps), which is also called the Collapse Transformations switch, and the 3D switch