It would be nice for search to be able to support limiting search to filetypes, but more than one filetype.
And to add this support to Lenses its filetype parameter.
Not sure if filetype:(zip, rar, 7z) or filetype:(zip OR rar OR 7z) would be the better synax.
Being able to filter for only one filetype can be rather limiting / time consuming.
Imagine a user is searching for a rare audio track.
Right now, it would have to be Rare Track filetype:mp3, Rare Track filetype:aac, Rare Track filetype:flac, etc., consuming many searches and more time.
With the improvement it would be Rare Track filetype:(mp3, aac, flac) or Rare Track filetype:(mp3 OR aac OR flac), getting all the results combined.
