title: Hybris addons install concept
body: <p>How is the best way to work with a default <code>Hybris addon</code>? There are some really nice addon features we want to use in our projects, but of course not exactly the way they are. So what is the best practice to modify them?</p>
  <p>Is it the way to copy the addon into the own project and then handle it as an own addon? (So put it under the 'custom' folder and modify it as needed)</p>