I've seen that the template changer don't allow for template edit and recompiling, and there seems not to be a preview option, so to create a template a see where changes are applied I guess I should try several times to see what happens in the frontend
Unless I'm missing something, but I can't find any documentation
Guys CB is really great on many aspects, but in future releases please consider a global rework of the frontend template logics for better compatibility with other templates and easier customizations
Just my 2 cents however!