djay Pro not batch analysing tracks in a folder added to it


djay Pro > library > analyse is greyed ( not active ) when I try to batch analyse tracks
in a folder I added to djay Pro. I can batch analyze iTunes tracks only.

The only solution I found to get BPM to 500 tracks in the folder was by adding the tracks to the Queue and then starting Automix, minimizing the problem with a 20 second track play time.

Any better solution ?