The Permission window which is only available in an Advanced Data Source , can be found in every entry properties in the Permission section.
The user group based permission system can give a very accurate control of the security. Here is an overview of the permission window:
Sets the permission mode. Select between:
|Allows batch granting access to a specific entry or entries.|
|Inherited values||Indicates what is inherited from parent groups.|
|Select user groups or users||Lets you select Users / User groups to be granted the permission. Available only if the permission is set to Custom .|