This video covers the topic of selecting organizational units (OU) within the scope of an environment. By default, when an OU is selected, the sub-OU's under it are also selected. However, users have the option to selectively choose their OUs by unchecking the box at the bottom. The refresh button allows users to start over and deselect everything. Users can modify their selections from the summary screen by removing or selecting multiple OUs at a time if needed.