There are two ways to create a KerMeta meta model. The first one is to start from scratch just by creating a ".kmt" file. The second one is to create an Ecore file and then to transform it into a KerMeta meta model.

This tutorial should help you in manipulating the Ecore and KerMeta files. It gives an overview on how to create meta models and how to transform them.

Start by creating a new general empty project in Eclipse.