The tree view provides a raw view on your LDAP directory. This feature is for people who are experienced with LDAP and need special functionality which the LAM account modules not provide. E.g. if you want to add a special object class to an account or edit attributes ignoring LAM's syntax checks.
There are also some special functions available:
Show internal attributes: Shows internal attributes of the current entry. This includes information about the creator and creation time of the entry.