To help you keep your creativity alive, Paint Shop Pro has an Undo feature (a multiple Undo feature, actually). If you make a change (or several changes) to an image and find that you don't like the change or that it isn't quite what you expected, you can undo it.
To undo the most recent change, choose Edit, Undo. This backs up to just before the most recent change you made. To see Undo in action, open a new file and draw a shape. Then follow these steps: