In the performance “trance vision” (usr 1-b-02) ,arp number 5 i notice that when i press a key the cut off moves from 0 to -64 and back to 0..i can see that by pressing edit-part 4-eg..
Is there a way that i can change this parameter? I mean to control the cutoff filter parameter

Some Arps include controller data. The user has no ability to edit that data. The only thing that can be done is to filter it out via a Receive Switch setting. For the particular Performance and Arp you’ve referred to, the controller data is CC#74, Brightness/Cutoff. There’s no individual Receive Switch setting for that controller. You could edit Part 4 - press [F6](RcvSwitch), where Control Change can be unchecked.