That doesn't look promising - it'd work great if I'd used it from the start, but I'm trying to clean up something I've already done. I'll keep it in mind for next time, though, because there's some good stuff there.

I suspect the answer will be to just update them all manually - it's not that scary a task, just a couple hours worth of work to give us proper control over something our whole team will be using for years to come. But I wanted to look for faster options.