You can display the entity list as a flat list or Tree hierarchy format. You can only use a Tree view if you select the Hierarchy system list. All other lists are displayed in the flat list view.
When the entities are displayed in a Tree view, you can expand and collapse the hierarchy using the plus (+) and minus (-) signs next to the entity. When changing the process level in a Tree view, you can choose to apply the action to the current selected entity only or to the selected entity and its descendants. Using the entity and descendants option allows you to perform an action without having to manually expand the entire organization.
When the list is displayed in a Tree view, no sorting or filtering is available for rows.