I'd like the ability to replace spaces with underscores and underscores with spaces in file names. Perhaps this could be added to the arrange files codec?

I created my file names based upon the track names. That means they have lots of spaces in them. Doing mass manipulation of file names with spaces is a pain under LINUX, where I store the files.

It would be spiffy if I could mass-rename with underscores instead of spaces, then mass manipulate under Linux. Someday, I'll probably want to go back to spaces for clarity.