I'm trying to figure out how to get an effect thats hard to describe in text:

For help in visualizing what I'm going for, think of the spinning wheels on game shows or at carnivals that have a spinning pointer go around and all around the border of the board is a concentric set of lights. Each light illuminates as the pointer goes past it.

I've tried a mockup by using SDK to key the illumination of the first light, but instead of having to manually key all n number of lights (which could be several), I'm wanting to try to duplicate or copy the keys for the other lights on the board. Unfortunately the pointer position seems to be copied as well and isn't advancing to the next light bulb if that makes sense.

Is there a better way to accomplish this simulation?