3. Sidebars & Widgets
Go to WP admin → Appearance → Widgets, in there you will see a widgets location called Sidebar. In the screenshot below you can see the widgets used on the demo.
The widgets that have MeridianThemes at the start of their name are non-standard WordPress widgets that were custom built for the theme.
MeridianThemes - Social
MeridianThemes - Instagram
MeridianThemes - Recent Posts