Hi, I have 360 photographs which need renaming for a dynamic e-commerce site - their file names are related to product codes. However, far from being straight-forward they need to keep their current name, but add a character (or two in some cases) into it. e.g. 1A_1.jpg is to become 1AYY_1.jpg 11C_2.jpg is to become 11CY_2.jpg I know Automator can add text before or after a filename, but is there an extension to allow me to add text in the middle? Thanks in advance.