I ran a report and would like to add the results to a group. However, the linked option is not appearing in the report results list. Why isn't this option available?
This is a limitation of the report type. Data is only be eligible for "Add Results to Group" function if the report results are one organized by one constituent per row of data. In the case of summary reports or any other report that doesn't organize data in this way, the "Add Results to a Group" option will not appear.