Every page is built according to a particular layout. (i.e. layout with or without slider, sidebar lay-out,...)
How are layouts being linked to a page in your account?
There are two ways to change a page layout
After clicking this button, a vertical view of all the pages in the account will be shown. Next to every page, the layout can be adjusted.
2. Another way to navigate to the Page Lay-out setup is by clicking Options -> Personalize Design.
3. When the screen opens, you select the first option (Link different layouts to pages)