I didn't see this suggested but I'm not sure what it would be under.
While trying to sort out files that will be named we currently see the "rename" button active. The files that will get a change are highlighted with the new name. In folders with a LOT of files sometimes it isn't easy to see all of them to check for a poor rename. That said, could we get...
A switch near the file window to show ONLY files that will be changed with the current renaming rules.
EX:
file.0001.jpg
file.0002.jrm
file.0003.jpg
file.0004.jrm ....
file.8686.jpg
file.8687.jpg
becomes just:
file.0002.jrm
file.0004.jrm
I know I can filter to only show specific things but that will only show THOSE specific things and not allow for a quick "Make all extensions jpg" or multiple rules affecting different files for different reasons. Basically a visibility switch would be faster and easier* than writing a regedit filter for cases I might not know about.
*easier from the point of 'you are already changing the name preview and font color.