Hi,
I don't know if anyone else put work into this but I don't really like the Greenfoot IDE especially when working with older students who know how to debug. I also don't like Netbeans and my toenails start to curl up when I have to add jars to the classpath manually. That's why I tried and found a way to develop and build standalone Greenfoot games with Maven in IntelliJ (you can use any IDE that can handle Maven).
If you are interested in this, please feel free to read my blog post about this or go directly to GitHub for the source code.
Sorry if this is offtopic or not wanted in this forum.
Regards
Lukas

