This is the kind of Add-On that helps you code or help you remember code (in case you've forgotten). It may even let you know about functionalities you did not know they existed at all. This is for the theme designer/developer, Concrete5 developer or for those who want to start learning how to code specific things and elements for Concrete5. A little bit of everything for each audience. It's pretty straight forward in usage and documentation is available.
In case you want to know everything about this Add-On, view the Code Helper plugin page.