The best way to understand how many prospects are currently waiting on a step in an engagement program is to look at the tooltip above that step. The tooltip will show you the number of prospects that are currently on that step, as well as the number of prospects that have completed that step. You can also see the percentage of prospects that have taken a specific action or followed a specific path from that step. The tooltip is a quick and easy way to get an overview of the performance of each step in your program