Template Manager by WordPress Monsters

Screenshots

You can create templates (layout) for your pages to add some blocks of content before/after general content. Also you can assign your template to custom post type(archive or single), taxonomies, 404 and search results pages, this options can be found in Templates->Settings menu in admin console. You should use [wpm-template-content] shortcode in this templates to separate content. Watch how to use Template Manager plugin in this cute short video: