Project setup for Google App Engine with modules

Question

I want to create an app for a google application with java, and therefore I want to use modules to separate the code.

I am using IntelliJ 14.0.3 and Maven 3.2.5

I would like to adjust the structure of the EAR file for my project, but creating a project using New Project → Java Enterprise → the Google App engine leads to a different structure than that suggested in this example project from google: https://github.com/GoogleCloudPlatform/ appengine-modules-sample-java

Adding modules using the option "New module → Maven → Archetype" works and creates the correct modules inside the project.

I would like to have an archetype that controls the creation of the application, but, unfortunately, I can not find it. I read about some generator in the toolbox, are there any tools for this?

How do you create such applications? Do you create a folder structure manually?