From what I’ve gathered in these comments, this idea appears to be quite similar to the one titled: Drill-downs for Sequences Open/Click Reporting.
In both ideas, the goal is to be able to view the indivudal contacts that make up the summary reporting in sequences. For purposes of organization, and to increase the collective weight of both these concepts, I’m going to go ahead and merge these together, as from a product perspective, I believe both of these problems should be addressed together.