To edit the home page content, please go to Site template styles > edit ex: tz_kamper - Home Page 1 > Layout. Here you can edit element's content in the layout.
Home 1 - Layout
Template Style Assignment
Create a menu item and assign it to a corresponding template style.
Menu item type: Featured Articles
Template style: tz_kamper - Home page 1
Create a menu item and assign it to a template style.