Experienced developers can jump to UML:Profile buildout.
Create a working setup for buildout.
Buildout is a software build system, the Python equivalent of Make, Maven and the like, enabling repeatable setups: bootstrap self-contained installations with dependencies and configuration. See http://www.buildout.org/.
At this stage, agx.generator.buildout only supports generation of buildouts for Plone version 4.1.2.
If you want AGX to generate files for a Plone 4.1.2 buildout, just add the <<plone_self_contained>> stereotype to your UML:Package.