Rock Star Pro has Five Default Layout Options to choose from:
- Primary Sidebar, Content: Preview Demo
- Content, Primary Sidebar: Preview Demo
- No Sidebar (Content Width): Preview Demo
- No Sidebar (One Column): Preview Demo
- No Sidebar (Full Width): Preview Demo
You can customize through «Appearance => Customize => Theme Options => Layout Options» from your WordPress Dashboard. Further, you can select custom layout for individual page and post though «Catch Responsive Options => Layout Options» meta box below the post and page editor.