The Attend an Event section on the Home page uses the Home Mid Right widget area. You have the flexibility to configure this widget area to display the content you would like to show.
To configure this for your site like our theme demo go to Appearance –> Widgets.
Drag an Events List widget to the Home Mid Right widget area.
Note: This optional widget is part of the Events Calendar/Events Calendar Pro plugin. If you do not have these plugins installed on your site you will not see this widget and should either install the plugin(s) or display a different widget in this widget area.
See the screenshot below for the settings we have configured in this widget.