There’re a few miscellaneous settings in Appearance → Customise → Miscellaneous Settings.
Social Links
Activating and setting up the display of the social networks you need.
Social networks in the header are displayed only when header Layout: Header 3 is enabled. To do this, you need to go to settings Appearance → Customize → Header settings.
Sticky Sidebar
You can sticky the sidebar and choose how you want to scroll it.
Scroll to Top
Activating the item will display a button at the bottom right of the screen, when clicked you can quickly return to the top of the page.