Restore selection based on files rather servers

At the moment restore selection can either be done by media or by resource. Which menas show me what is on the tape, or here's a server and it was backed up on these dates, this is great if you are restoring a whole server or do full backups every night but if you want just a single file and you differential or incremental backups it can be a real pain to find the backup.

What would be handy would be the ability to drill down to a specific file on a server then see the restore dates that were available and select on that basis, this more accurately reflects the type of restore that is most common for us.