CompuServe Messages

I have the #1 IPAS package and am using the hilite filter. What the client wants is the hilite to start small at a specific point over the video, then enlarge to take up the whole screen. As this happens, it would appear to be a bright light from the center of the hilite that in essence is being used to dissolve the screen to white to set up the next scene. In playing around with the IPAS routine. I see that I can make any number of offshoots for the hilite and control the size. But can't figure out how to make them grow over time. Is this possible. One thought was to have the hilite key off of a very small white star placed where I wanted the center to be, then scale the star over say a scond or so. As the star grows, so will the hilites. Sound right? Also to enhance the bright light effect from the center of the hilite, maybe include the glow feature to enhance the effect? Any comments, suggestions greatly appreciated. Paul