Like the blog page, the opus blog has some options on a single page as well. From Appearance > Customize > Single Page you can manage the single page settings.

• Select the preferred sidebar for the single page. (You can change the sidebar for individual page from the post template option).
• Enable Drop Cap for a single page.
• Author details enable on Single page.
• Related Post – Enable related posts and manage the related post on a single page.

Note: You will get lots of options on premium version as well.