just a teaser image, i finally added ability to copy and paste images (or selections) as movable objects.
its just like the clipart objects but you can simply select a region, hit Ctrl+C then Ctrl+v to have a movable clipart image to overlay on top of your screenshot. good for combining screenshots, or doing a kind of picture-in-picture effect.
see picture below.
I'm also going to add some commands for easily combining screenshots by placing them side by side, etc.
any more suggestions along this line?