Intellij 2018.2.4 with JDK 11 JDK API Docs

HI,

I have installed JDK 11 and downloaded the documentation zip. Unfortunately. when I add the documentation to the JDK by selecting the API folder in the documentation zip  (same as I have done for previous JDK releases, I am not getting JavaDoc  for the method under the cursor and push shift-f1. It appears the problem is IntelliJ  is not allowing for the module directories under the api directory and instead is trying to find the documentation in the package directories and sub-directories directly  under the api directory. The reason I say this if I select one of the module directories under api directory in the zip it then finds the class documentation correctly for the classes in that module.

First am I doing something wrong, if so what? Is there a work around? If not, this may serve as useful bug report? Lastly details of my system a MacBook Pro with MacOS 11.14 (in case it system specific).

Regards,

Ben.