This window enables you to choose security groups of users who also want to view the Report.
To add a security group of users to the list, you need find and select it in the left-hand pane, before copying it to the right pane.
Notes
You can unshare a Report on this window by moving security groups from the right-hand pane to the left-hand pane.
You can select more than one security group to add or you can use the double-arrow button to add all of them.