Final answer:
To modify a SmartArt graphic to a Pyramid List layout with the Sunset Scene style, select the graphic, go to the SmartArt Design tab, choose 'Change Layout', select Pyramid List, and then apply the Sunset Scene style from the SmartArt Styles options.
Step-by-step explanation:
The question you've asked relates to modifying a SmartArt graphic in a software program, possibly Microsoft PowerPoint. To change the layout of your pyramid to a Pyramid List and apply the Sunset Scene style, you need to first select your SmartArt graphic in the document. Then, go to the SmartArt Design tab on the ribbon. From there, you can choose the 'Change Layout' option and select the Pyramid List from the list of available layouts. For the style you want, again under the SmartArt Design tab, click on the 'SmartArt Styles' button, and from the dropdown menu, select the Sunset Scene style. This will update your graphic to match your requirements.