Please follow the below steps to configure Post and Pages Settings

• Go to Appearance > Customize >General Settings> Posts and Pages Settings 
• Enable Blog Excerpt to show excerpt or disable to show full post content. Choose the Excerpt length. 
• Enter Blog Description
• EnableHide Author to hide author section on an individual post page.
• Enable Show Popular Posts to show popular posts on a single page. Enter Popular Posts Section Title.
• Enter Popular Posts section Title
• EnableShow Related Posts to show related posts on a single page. Enter Related Posts section title.
• Enter Related Posts section Title
• Enable Hide Posted Date to hide posted date.
• Enable Show Featured Image to show featured image in a post detail (single page).
• Click Publish.