Similar to the blog layout options, you get 3 layouts for your full post. These are determined by the sidebar position settings only. You get a left, right, or no sidebar option.
Go to Appearance >> Customize >> Theme Options >> Post Settings
Look for the “Sidebar Position” setting and select the sidebar position you want for your layout.
Click “Save & Publish“.
Additional Full Post Options
After setting your full post layout, you can move on to the next batch of settings. You can show or hide various page elements.
While you are in the Post Settings, choose what elements you want to show or hide by checking or unchecking the boxes.
Click “Save & Publish“