Is there anyway to have a contact sheet auto refresh as images are dropped into it? At the moment I'm closing then reopening contact sheets every time I add images.
No, but you can choose the "Rescan" command from the Image menu. I'm surprised it doesn't rescan when the images copy. What is the source of the drag-and-drop operation?
No need to close a Contact Sheet tab, Rescan should force new images to appear.
-Kirk