Adds the ability to configure permalinks for custom post types using rewrite tags like %post_id% and %author%.

When registering a post type you can add a value to the rewrite property with the key 'permastruct' to define your default permalink structure.

eg:

<?php

register_post_type( 'my_type', array(
	...
	'rewrite' => array( 'permastruct' => '/%custom_taxonomy%/%author%/%postname%/' ),
 	...
) );

?>

Alternatively you can set the permalink structure from the permalinks settings page in admin.