This PR: https://github.com/ezsystems/EzLandingPageFieldTypeBundle/pull/150 introduces a new way of adding blocks to a Landing Page which should be documented, alongside the existing doc here: https://doc.ez.no/pages/viewpage.action?pageId=31430614.
Also include info on overriding existing block configuration.

Note: might be a good idea to move it to https://doc.ez.no/display/DEVELOPER/Extending+eZ+Platform#ExtendingeZPlatform-ExtendingtheLandingPage(Enterprise)