With navigation elements in place, it’s time to begin building out the content for the app. The feed item post element is a group of other elements, including a header, and image placeholder, and post details. This element can be copied from the asset artboard with a standard copy and paste, or by holding Option/Alt while clicking and dragging the element into place (Option/Alt must be held until the drag is released, or the object will simply be moved, not duplicated).
Position the post card below the navigation header. Don’t worry about precise positioning yet as the elements will be adjusted later. Since all of the elements on the page share the same background color, it may be helpful to adjust the color of the artboard to a contrasting color while elements are positioned.