By default, measurement will apply to all coverage within a report.
However, it's easy to display data for individual sections, for example:
Regions
Campaigns
Coverage Tiers
Months
Here's how it works:
Give each coverage widget a unique title
In order for section measurement to work, each coverage widget needs a unique title.
Edit the widget and click on the 'Widget Title' section in the right column.

Use the filter in the Summary Metrics or Charts and Graphs widget
Edit the Charts and Graphs widget or Summary Metrics widget.
Use the filter in the header to select the widgets that should be measured.
Note: by default, data for all coverage widgets is displayed.
