This would be an amazing addition! I've got hundreds of multitrack songs which translates to thousands of tracks and just doing a few of the songs is agonizingly monotonous. My OCD will force me to spend hours and days (weeks?) renaming tracks, and also color coding them (I match them to KV in my DAW somewhat).
Love Me Tender - Click.mp3.... Rename to Click in ST4. Change color
Love Me Tender - Cues.mp3.... Rename to Cues. Change color
Love Me Tender - Drums.mp3.... rename to Drums. Change color
Love Me Tender - Bass.mp3... Rename to Bass. Change color
etc etc for one song!
Not to mention Buses. My click is always Bus 1, cue is always Bus 2, Drums 3, Bass 4, everthing else is Bus 5. It's tedious to repeat this simple task over and over.
I understand that people have different file naming conventions, but it would be simple to run a batch rename using a tool like Mp3Tag to match a key set by ST4. So if the key was double brackets, Love Me Tender - [[Click]].mp3 is automatically loaded into Track 1, renamed to Click, set to Bus 1, set color to yellow.
It probably won't be as bad for adding new songs, but looking at my library I've got a lot of work to do when the time comes.