Traktor 4 is great, but the Stem separation analysis process is ridiculous. Why can't I highlight multiple files and set Traktor to perform stem separation on them all? When you highlight multiple files and access the right click drop down menu, the "generate stems" option disappears. That's a huge oversight in terms of usability. The Stem separation process takes a few minutes per track, and having to manually queue up another file is a huge waste of time.