We introduced a new action that provides a module cloning facility. To clone a module you should select it in the project menu and click on `Clone Solution/Language` action in the context menu.
In the opened dialog you can choose name and location of a new module.
After OK, the module will be cloned and ready to use. The new module will contain all code and properties from the old one. If you are cloning a language then its generator will be also cloned.
You can see full documentation on clone module action here.