Thanks for such a handy program. It's a lifesaver! I have two minor suggestions.
1) In the numbering section (sect. 10) the option to designate letters as well as, or instead of, numbers could be handy.
2) In the window pane that shows file details like: Name, New Name, type, size, etc., having the option to include the same attributes like Explorer does would be great. Especially when it comes to photographs. Explorer has an option to show "Date Picture Taken" which is very handy for getting a bunch of files sorted in an "oldest to newest" order and then naming the files accordingly.
Thanks for such a fabulous program!!