The new feature to enable the usage of a compiler configuration script (#127) is great.

It's documented here:
https://github.com/groovy/groovy-eclipse/wiki/Groovy-Eclipse-2.9.2-Release-Notes#support-for-compiler-configuration

But that documentation doesn't say how to configure maven to use a config script. It only shows an example for setting it on the eclipse UI.