I don't know if Genline itself has a way of copying images, but you can always make screen dumps by pressing Print Screen on your keyboard, opening an image viewer and doing Ctrl+V (Paste). Crop the image as you like and then save.
This works for making anything on your screen into an image, no matter what software you're running. (This is a PC/Windows hint, I don't know how it would work on e.g. a Mac!)