I had this same question. I also thought there might be a setting for how long a runner show up on the display. It would be nice if one runner comes through it stay up for 10 seconds, and if more runners come in during that time it starts sharing the screen so 2, then 3, then 4 .. show up until the 10 seconds elapse then the first one disappears followed by the others at their 10 second intervals. My announcer this weekend was a little frustrated not being able to announce most folks coming through the finish line, we ended up using the printed list of runners and someone calling off the bib numbers/names for the announcer.
Dave
Peninsula Adventure Sports