Actually One of the best uses for this feature is a way to allow you to fix problem images. Say you render an image and see a problem in it (for the purpose of this example, lets assume you see an object is not touching a surface..but everything else is fine). Lets also assume that the image to a LOOONNNNGGGG time to render and you simply do not want to re-render the whole thing after you fix the problem. What you would do is: . set a camera memory dot at the current render position ..export the rendered image to a file name (dont use the default one it gives you) ...fix the problem in the image file (if the problem requires you to do various camera angle changes and plop renders to be assured the object is actually positioned correctly this time..feel free to do this) ....once the problem is fixed, return to your original camera location by clicking the camera memory button you set earlier .....now just go to "file" and "open image". The old image will pop into place. ......you then just use the plop render feature to re-render only the problem area. This is a big time saver for long renders. Many of the images I render take days (even weeks) and this little trick allows me to fix small problems without waiting the whole time again. :) BT