OS X 10.8 Cross DJ Batch change of BPM

Hi
Just installed Cross DJ as i am making a minimal DJ rig
Had a go and a look about but unable to find the answer.
How would i go about batch changing BPM.
I have 100's tracks with BPM halved. for example tracks that should be 140 show up 75
In serato scratch and serato DJ you can select the tracks in the track list, double click on a track with BPM and press alt key + up arrow or down arrow depending if you wanted to x2 or 1/2 the BPM & it would change all of the selected tracks
A similar feature in Cross?
Thanks
Just installed Cross DJ as i am making a minimal DJ rig
Had a go and a look about but unable to find the answer.
How would i go about batch changing BPM.
I have 100's tracks with BPM halved. for example tracks that should be 140 show up 75
In serato scratch and serato DJ you can select the tracks in the track list, double click on a track with BPM and press alt key + up arrow or down arrow depending if you wanted to x2 or 1/2 the BPM & it would change all of the selected tracks

A similar feature in Cross?
Thanks