Manage How Groups for Network Functions are Displayed Use the buttons at the top of the Managed Devices pane to affect the display of hierarchical groups, NFs and their associated devices. Expand the Device Manager slider and click Devices. In the Managed Devices pane, you can use the following buttons to manage how devices are displayed: Name Description Refresh Click to refresh the data displayed on the screen for hierarchical groups, NFs and their associated devices. Collapse All Click to collapse all folders.