Clicking on the Configuration link redirects you to different Configuration widgets.
Clicking on the Marketplace widget redirects you to the Marketplaces page
Marketplace module allows the user to connect to different Third Parties (eg., WooCommerce, Magento or Shopify)
Marketplace module has two parts, the List of Marketplaces and the Marketplace Defaults.
Marketplace Defaults provides the user with default dimensions in case there are no given dimensions from the Third Party integration.
List of marketplaces are the available Third Parties that are integrated to BBA.