Thanks for your comments Rick, Mickoid and Chris.
I must say the terminology used in Startools - "healing" does have that new age connotation to it.
Let me say it has enabled me to use the full image field rather than resorting to cropping back. It's certainly brought the image closer to peace and harmony in the universe hehehe
Much to learn still with the order and process but seems an interesting program to use. Any tips I'd be appreciative.