How do I assign multiple roles and/or permissions to a user?

You can assign only one role but more than one permission to a user. Navigate to the user’s profile and scroll down to the User roles section. 

Select the desired role and toggle on limited rights if necessary.

To enable user permissions, check the ones you wish to add. 

Don't forget to save the changes at the bottom of the page. To learn more about user roles and permissions click here.