Bring Premiere Pro's Relink Method to Audition
Premiere Pro has an excellent method of relinking media files. If media isn't present in its last known place, it provides a window that tells you all the files that are missing and its last known location.
Audition only informs you that there is X number of files missing, and when you relink, it gives you one file to relink at a time, with no information where Audition thinks its last location is.
Additionally, Premiere Pro will automatically find remaining files based on the last location of the relinked file. Adobe Audition does not. Having this additional functionality would be extremely helpful, especially if your workflow makes it challenging to collect all files into a session due to space limitations.