Master pages are the key to body page layouts in FrameMaker. Whenever possible, use the left and right master pages in documents because they are automatically generated as text flows from page to page. Custom master pages are manually assigned to body pages and can be difficult to keep track of. If you are working with a group on documentation projects that require many master pages, assign the various master page layouts to body pages, and use it as an example to distribute to your coworkers. This makes clear the intended purpose of master pages for everyone working on the project.