I am trying to get an effect where buttons travel in a wave motion. I need to use a combination of a guide and a mask. If I use the guide alone, the wave doesn't move. if I use the mask alone, the buttons move straight. Get the FLA from the movies section (search for wave) and try to use that mask with a combination of moving buttons. It's tough to visualize. I've been trying, and I'm getting there slowly, but I need some help.