View the permissions for any registered user.
Select Users → User Manager → Debug Permissions Report from the drop-down menu on the Back-end of your Joomla! installation when System Debug is enabled in the Global Configuration.
The Debug Permissions report allows you to map out the exact permissions for any given user across all extensions on your Joomla installation.
Filter by Assets
Enter part of the asset name and press the Search to find matching assets. Press Reset to clear the search field and restore the list of assets.
Filter by Component, Start Level and End Level
In the upper right, above the column headings, are three drop-down list boxes as shown below.
At the top right you will see the toolbar:
The function is: