We added two more reports to the Lifecycle and Messages dashboards.
In Lifecycle, this new report displays the distribution of User Session Durations in minutes for the given time range. In the Explore View, filter by a specific push ID, or slice by tags.
In Messages, see the Top 50 Automation Messages sent during the selected date range.
Take a look at the descriptions for the Lifecycle and Messages reports, or start with the Default Dashboards documentation.