Thanks for the tip.
Apparently I can’t spell create.
I figured there was probably a plugin, but I think this is a feature that could also easily be added to the actual wordpress installation and would be a useful feature, especially for amateur end users.
I have no problem working with plugins, creating templates, but some of the people who do the day-to-day updates and posts on sites I help with are not very savvy with code and being able to simply duplicate a page and change the relevant parts would help them out.