I often process 20–30 images at a time using the metadata input dialog. Currently, I apply my template using Ctrl+Alt+C and then manually press Alt+Right Arrow to move to the next image.
It would be a great efficiency boost if there were an "Auto-advance" checkbox. When enabled, the software should automatically move to the next image immediately after a Metadata Template is applied. This would significantly reduce the number of commands needed for high-volume tagging.