You can now download the initial draft of the Nexus documentation in either PDF or CHM help file format from the Nexus support page (see Support Menu above).If you opt for the CHM version, copy it in to the folder Nexus runs from (usually c:\program files\p squaredexus v1) and help should be available from the help menu in Nexus.
These are initial drafts and are awaiting final editing so please forgive any errors.
Liam