In Flash Builder is there a way to duplicate/branch a project?

I have a file that I've been working on, and i want to take what I have and modify it heavily, but I want to keep the original; if there was a 'duplicate' project command I would do that, but I don't see one, and wondered if there might be a way to keep it all in the same 开发者_如何学编程project for tidiness purposes. I'd just copy paste the directory myself but just want to make sure I'm not missing some functionality.

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Best practice for that is using a SCM (SVN, GiT, ...). You can easily revert a project/file to a previous state.

If you don't use one, Eclipse keeps a local history for each of your files. (Team->Show Local History)

And if you really want 2 projects, I don't think there is a command for that. Copy paste the directory and changes the name of the project (.project file)