Using this option a fair bit, but I've run into a slight problem. If for some reason I stop the program half way through (say it's on the 2nd or 3rd datum hop) and I want to restart the program, it doesn't go back to the original datum, but instead starts at the datum where I stopped it.
I've managed (somehow!) to get it back to the original datum, but I don't know how
and then just yesterday I managed to completely reset all my datums, which was rather a pain!
Any help much appreciated. I'm sure there's something very simple.