After some noodling, I discovered this thread:
which appears to answer my questions. I will undertake the process described in it, maybe creating some small non-critical databases to test what I am doing. However:
If you read through that thread, it’s really evident that the OP is as confused as I am (in fact, I’m probably more confused) and that things have to be explained multiple times because documentation doesn’t exist and the tutorials aren’t helpful.
This is such a persistent problem in DT, that whatever explanations exist are just not pitched in a way that is helpful to all levels of users. I know of so many journalists who have simply given up on the program because of this. It’s discouraging.