The ThemeWare® "Slideout communities" are based on the ThemeWare® "Communities (Social Media)" widget and offer an alternative, prominent position beside the widget in the footer. As they are based on the widget, both use the same snippets.
Go to the "Extensions" tab
Expand the "Slideout communities" block
Enable the configuration "Show slideout communities"
Save your changes after editing
Via the "Layout type" you choose between "unicoloured" (link in icon colour) and "multicoloured" (individual background colour per channel).
Tab "Extensions" => Block "Slideout communities" => Show slideout communities
Tab "Extensions" => Block "Slideout communities" => Layout type
You can find more information about the snippets in our article about the ThemeWare® "Communities (Social Media)" widget: