It looks like it is possible to add custom links to the Help page. You will need to add the following Site Parameter to QC/ALM. I have tested it and the the parameter does not work unless you are on ALM 12.21 patch 01 (build # 12.21.4025.0)
Description This parameter enables you to add a custom entry to the Help menu that links to a URL address. For example, if you want to allow users local access to ALM product movies, you can save the movies on the server, and create a link to a movies index page. Use the following syntax to enter a parameter value: ;, where the values of both and are surrounded by quotation marks, and separated by a semicolon. For example, set the value of the parameter to ''MyBusiness - Online Help Page'';''http://mybusiness/ALMHelp''. The above example adds the MyBusiness - Online Help Page entry to the Help menu. Clicking the entry opens a custom Web page located at http://mybusiness/ALMHelp.
Introduced in release ALM 11.51
Introduced in patch GA