An Info Page is a Standalone Page that is linked directly from the Sitewide Navigation menu.

In b2evolution v6, you could select a collection for Info Pages. All Standalone pages of that collection would become Info Pages.

In b2evolution v7, which Standalone pages become Info Pages depends on the Site Skin you use. Check the settings of that site skin and check if it has a widget container for configuring the links you want as widgets.