Revise Bulk Upload

CM1
1

Since there is no drag n drop feature yet for Percussion, I think this is the best approach… plus it’s really not hard to modify it at all… all you have to do is to revise ```

 tag with
``` and here's the source: http://www.w3schools.com/tags/tag_optgroup.asp

File and Image, I believe, are the most popular while the rest aren't.