What do you mean by full scene *TAB*? ENVI's built in scatterplot tool only plots pixels inside the "image" window of a display. Is that what you're talking about? This is done intentionally to avoid potential problems displaying very large images in a scatterplot. But when you're talking about not seeing a tab, that seems to me to imply you expected to see a specific control and couldn't find it. If there's any kind of tab function that lets you plot every pixel in a scene using ENVI's built in scatterplot, I don't know about it. However, you can always build the scatterplot yourself in IDL :) Pretty simple to do actually, if you know your images aren't too big. Jeff