The built-in help is out of date, see my post above for instructions on how to do it.
Omni peeps: please fix this! I appreciate that fixing the built-in help requires getting a new release through Apple, but fixing the online version at
http://help.omnigroup.com/ipad/omnifocus/ could be done this afternoon. Updating the documentation to match the program's UI ought to be a mandatory step on the release checklist...