As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.
http://docs.alfresco.com/community/tasks/alfresco-sdk-advanced-add-custom-amps-aio.html is broken and its found in page Adding content to a Surf page | Alfresco Documentation .
Might be Create new custom AMPs as part of the AIO project | Alfresco Documentation