I think all of us saw the lack of plugins for IntelliJ. I mean just compare with the number of plugins for Eclipse.
IntelliJ is a great IDE (years ahead Eclipse), but it could be even greater with new plugins.
I think one of the reasons for the this is the lack of proper documentation (beside javadoc).
The beginners expects a tutorial - like documentation and those few are outdated (custom language tutorial is for IntelliJ 5 and a LOT has changed in OpenAPI since then; the other is for IntelliJ 4.5).
Would you please consider providing proper OpenAPI documentation?
Because, frankly, a forum is only for specific problems, not a proper place for documentation.
Also, would you like me to create a JIRA issue concerning this?