To start editing the website, launch the C1 Console.
If you want to edit this website, you need to log in to the C1 Console.
To open the console:
You will log in to the console defaulting to the Content perspective. Here, expand "Websites" and the front page below and select the page you want to edit.
You can find more user information on getting started with Composite C1 here:
The web based editor tool in Composite C1 is called the C1 Console. From here you can manage content, media, users, data types and files and you can install new feature packages and do light web development.