Reply to S4 filter on / off neutralization

Hey guys,

I just recently bought an X1 to go along with my S4 because I feel there are a few things that the S4 is lacking. Mainly EQ kills and filter on / off. I've mapped the bottom 16 buttons on the X1 for the EQ kills and filter on / off for each of the four decks. Everything works great except for the filter on / off. The S4 turns off the filter when the knob is at 0 and turns it on when you start rotating the knob. I've played around with creating an S4 user mapping to neutralize this, but I haven't had any luck. Does anyone have any idea on how to accomplish this?

Thanks!