Auto crossfader with 2 fingers?

Hi there, in previous versions of DJAY , i was able 2 scratch a track by putting 2 fingers on the the current track. (The crossfader would automaticly move between the tracks) But i noticed i cannot do this anymore in the current version i’m using.
1.0.11 DJAY Pro on the ipad pro. Has this feature removed or is this a bug?
Kind regards, Sjacky E…