The refresh function
A refresh button located at the top of the Configuration navigation tree provides the following functions.
Refreshes the contents of the tree, which is useful you want to obtain the latest information about configuration settings. These settings might have been updated while you are viewing the tree (for example, when an application has been registered or unregistered or when someone else has updated settings).
Returns the navigation tree to the state it was in the last time you selected a node, collapsing or expanding the tree as necessary.
Important: If you are in edit mode when you click Refresh, the page is returned to the read mode. Any unsaved changes are lost.