How do I save a new site I've started to a particular folder on my computer? When I click 'Save' Nicepage saves it but I have no idea where; it certainly isn't where I want it!

Suppose you want to make a variation on a site/theme you've created while preserving the original. This doesn't seem possible. It would be easy to just save as another name and continue to work on...

I know similar questions have been asked but it still does not seem possible. Having spent ages getting a website 'just right' online is there a way to save it as a project or template for future use...