Site layout: This option works on whole site. You can choose either Boxed or Wide or Frame site layout.

Archive Sidebar: This options works on all archive pages like: 404, search, date, category, blog and so on. You can choose either Right sidebar or Left sidebar or No Sidebar.

Global Page Sidebar: This options works only on single page. You can choose either Right sidebar or Left sidebar or No Sidebar.

Global post Sidebar: This options works only on single posts. You can choose either Right sidebar or Left sidebar or No Sidebar.