Go to System > Site Template Styles > shaper_newskit - Default for backend editing using the Helix3 framework.

Using the numerous customization options, you can use to adjust the layout and looks of your webpage. Using Helix3’s built-in Layout Builder, you can effortlessly reposition module positions, adjust their grid dimensions, and add new rows, columns, or module areas directly within the template settings—enabling full control over your page structure without editing core files.