You’ll find here a description of startup views provided by the framework.
This module contains the default index page and management view.
The default index view, that you’ll get when accessing your site’s root url. It’s by default indentical to the ManageView, but you’ll usually want to customize this one.
The manage view, display some information about what’s contained by your site and provides access to administration stuff such as user and groups management.
Regarding the section displaying link to entity type, notice by default it won’t display entity types which are related to another one using a mandatory (cardinality == 1) composite relation.
You can still configure that behaviour manually using the indexview_etype_section as explained in cubicweb.web.uicfg.
Other startup views: