This is the most important part of Product Editor. It is a preview for all added layers. Click on each layer to edit or drag the mouse to adjust all layers.
There are parts of the design area:
Object editor: Customize the selected object color and effect.
Zoom tools: Scroll to zoom in or zoom out.
Stages switcher: switch design view to other stage or product.
Design area: The range for design
Toolbar: The options for selected layers include arranges, transform, and position.