Breakouts are the displayed columns that categorize report data. When a report is generated, the chart is created from the selected combination of breakouts and metrics.
You can apply up to five breakouts to a new or saved report. If you apply breakouts to a saved report, you must generate the report and save it using a unique report name.
Time-based dimensions (day, week, month, etc.) require another breakout for Digital Analytics to build the report.
To add breakouts to a report, simply select Add breakouts or the Edit icon in the Breakouts section of the report menu pane. The Search breakouts modal opens. Select or search whichever breakouts you want to categorize your data with; the information icons (i) give descriptions of each dimension. When you are done selecting your dimensions, select Apply and generate your report to see the results.