Found the problem: The manuals in the Linux 3.20b patch are the old, obsolete manuals, not the new ones. So all the new commands are also missing.
I'll attach the 3.20 PDFs to this thread once I get home from work. In the meanwhile, download the Amos version to see most of the new layout, that one only has the Advanced Monster Modding section in the old alphabetical format, the official version has it in subsections.