WordPress supports the multiple roles for users but does not have an interface to manage them. Multiple Roles Interface replaces the Roles dropdown menu on the user-edit.php page with a list of checkboxes to assign multiple roles.

Download the zip file.

Plugin Features

• Works on multisite as well as single installations
• Introduces an optional constant to prevent accidental removal of all roles from a user
• Provides filter hooks for additional customization
• Installs cleanly: no options added to the database or settings page to manage
• Includes language support

Tutorials

Check out the tutorials for Multiple Roles Interface:

• Defining the Multiple Roles Interface Constant
• Using the Default Role Filter
• Using the Roles List Filter

To use them you’ll need to know something about PHP, WordPress filter hooks and your wp-config.php file.