When you select this item the panel below slide out from the left side of the screen showing the configurable report options.
<TODO : Topic name>
Close
As you'll find elsewhere in the Apps, close the slide out panel by clicking this icon, remember that any changes you make will not be applied if you close the slide out this way.
If you want to have sub totals displayed in your reports check this item. Many reports have 'group by' options that allow you to group the data in different ways. For instance, you may wish to group a report by ACD Skill and Date, or by ACD Skill and Agent. When you select a group by option, if you have checked this sub totals option, the report will include sub totals when the grouped element changes.
If selected, sub totals will also be included in printed reports and when you export a report to Excel format (xlsx).