Rename files (not clips) in multitrack

As far as I can tell, there's no way to easily rename files that are used in a multitrack session. Does anyone know of a way to do this without having to use "save as" and then relink clips? This is a really laborious process if the same file is used in many clips. Renaming files would be a really nice feature given that recording many takes produces all sorts of files with similar names. After working for a bit and finalizing a take, it would be nice to be able to actually name the file something distinct and then easily delete unwanted files. Otherwise I've just got a ton of files named "Track X_00x: etc.