Hi Hugh, the answer to your first question is no, it's all manually done. The answer to your second is that this is an old practice inherited from Accpac, I believe. With the newer versions of ledger, there isn't a common cause to do this anymore since it can retain many years worth of account information instead of just a couple. Late adjustments can be dealt with using the post to prior year function, or by keeping both years open simultaneously until the older one is finished. It's still generally good practice to keep a year end back-up copy of the data, but you should only ever need it in an emergency.
That said, everyone is unique in some way and you may want to review your expectations with your consultant before changing the practice.