Steps to start coding to add (small to begin with) features to Kojo:

• Clone the Kojo repo (from the Source page)
• Build your local version of Kojo to make sure you're set to go
• Fire up Netbeans, and open the Kojo project
• To play with the Turtle stuff:
• Head on over to net.kogics.kojo.xscala.ScalaCodeRunner
• Find the Builtins object (see ScalaCodeRunnerBuiltins)
• Start Hacking! Any method that you add to this object will be available within the Kojo Script Editor
• To play with Staging:
• Open up staging.scala (within net.kogics.kojo.staging)
• Find the API object (see StagingModule)
• Start Hacking! Any method that you add to this object will be available within the StagingModule (and accessible from the Script Editor)