How to Sync Scrivener
Scrivener has a function that allows you to set up an external (to Scrivener) folder and ‘sync’ all your Scrivener files there. This is a two way process, Scrivener writes the files out to the folder in RTF format and also syncs them back to Scrivener again. This means that you can edit the files – or even add new ones – and they will be reimported into Scrivener. So long as you don’t change the names you are effectively updating Scrivener.
This is also a great way to work with a writing partner who is not using Scrivener.