I would like to know if SnagIt can do cumulative capturing on the same canvas? So if I had a story to tell in four Snags and they interrelate and may have arrows and such pointing to each other. Can I do capture one to the canvas then capture two to same canvas until I have all four on the single canvas. Doing separate captures and dragging the second on up captures to the first capture makes the second capture on up to have a marked quality fall off. Thanks.