Crave Velocity MIDI with Ableton Live


I am triying configure Ableton live and Crave with the purpose thaty the velocity of the notes I am sending from ableton affects to crave's velocity.

In Synth Tool I selected MIDI Velocity from Assing Value. I've been tryng through USB and MIDI port from audi interface but it doesn't work.

Must I do something with patchbay??

Thanks a lot