Oh... maybe you were talking about the thumbnail strip at the bottom of the frame?
I actually hadn't seen that until just now. Thinking of that bottom row of thumbnails as well as the right hand 'Highlights' bar turned on at the same time is way too cluttered, though.
One interesting solution could be to allow people to expand the Highlights reel to the full set of images or shrink it back to just the highlights (or hide the bar completely, naturally). When expanded to all the images, highlights that have been used as highlights could be bordered in a different colour and display their title and description as the currently do.