Use + Add to choose what kind of block to place on this FlexibleLayout screen: text, media, product catalog, button, purchase button, list, custom embed, text field, spacer, header, footer, or paywall header. Add sections in the same order a visitor should read them, then drag to reorder if the screen flow changes. Start with the biggest structure first — for example header, hero text/media, products, and CTA — then tune layout settings inside each section.