Setup the homepage
Navigate to Settings > Reading. Set the Front page displays on Your latest posts. On this page you can also set the maximum number of posts shown per page. Don’t forget to save the settings.
Read more options
Navigate to Genesis > Theme Settings. For Content Archives, the default setting of “Display post content” is used. Here you can limit the content of the posts that are shown on the homepage. The limit of 200 characters is used in the demo.