Each blog article can have it's own settings. Within your blog article click the Settings cog located to the top left of the screen.

Article Settings Menu

• Show/Hide Sidebar
• Show/Hide Header
• Expand featured image/gallery
• Enable Comments (Allow readers to submit a comment)
• Comment Approval (If selected, you must approve any new comments before they are displayed on the article page.)
• Add/remove share buttons
• Set Tags to help segment blog posts into groups
• Categories
• Post URL
• Post Author
• Post Date
• View Comments