One questions on this is are you playing Scaler and wanting to change the performance as you play or are you simply wanting to use different performances on different blocks on the patterns.
As @jamieh says you can use midi CC to change patterns in real time but you will have to program the midi CC with set patterns.
Alternatively if you are simply wanting to play different patterns on different blocks you may find the tutorial Introduction to Using Playback Performances to Give Interesting Melodies useful.