Are there any samples fr the clone object model? I can't find anything less than a few years old, and it seems to have changed. I used to be able to simply add the module, and a "IsClonable" custom attribute, but that doesn't work anymore.
I've tried everything mentioned in the documentation, it says that dropping the module in and setting the base classes "IsClonable" property to "true" will do it. The base class doesn't seem to have an "IsClonable" property, unless I inherit the IModelClassCloneable interface and create it myself, but that doesn't make the clone action show up either.