A child element provides a quick and efficient method to generate supplementary elements based on existing elements within the page. When crafting a child element, the newly created element will utilize the identical data source as its parent element. To begin, identify the desired parent element. Hover your cursor over the element, specifically near the upper right corner, and observe the appearance of an icon box. Within this box, you will find the option to "Create Child Element." Click on this icon, and proceed to select the desired type of element you wish to create.