Get GroovyDoc to appear in Grails project

     How do I configure IntelliJ to show me GroovyDoc for Groovy methods in a Grails project? I can get the groovy doc for groovy methods in a pure groovy project because I have a Groovy global library configured with javadoc configuration pointing at a directory I have installed the groovy documentation in. I don't see a way to associate Groovy documentation with the version of groovy that grails has (grails includes the groovy jar).

For example, this works when I am just doing groovy:



For a groovy project I get docs for groovy methods:



But I don't get the same thing in a Grails project:



Can  anyone provide any insight?