Hi
Some times I need to render almost whole picture and keep small areas as they were rendered previously. At the moment in these cases I have to use multiple regions to cover most part of the image keeping those small areas which shouldn't be rendered unselected. I think it would be nice to have an option to invert selected area for render, or it could be called include/exclude area for render. In this case I will need to draw couple of regions, click invert region (or exclude from render) button and it will do the trick.
