The Filter Objects by Owner dialog has the following components:
Database Displays the name of the selected database.
Select the users and groups whose objects you want to view Lists the names and comments for all the users and groups connected to the database. Select the checkbox beside a user or group if you want their objects to appear.
The user SYS owns system tables.
Select All Click Select All to view objects belonging to all users in the Users list.
Clear All Click Clear All to clear all the checkboxes in the Users list.
Restore Defaults Click Restore Defaults to return the list of users on this tab to their default values (selected or cleared).