by RoJeC on 27 Feb 2017, 14:16
You cannot set a range.
Unfortunatly you need to change indivual tracks.
In advanced settings set 'allow beat grid editing'
When track loaded select Wavebutton. Next select beatgrid button for (each) deck. You now see some buttons like /2 and x2 for modifying BPM.
These values are saved with the track info.
If you start an automix with you tracks)playlist) and set autoplay fade to 0 you can pretty fast modify a bunch of tracks by staying in the wave menu and crossfading fast.