Controling Filter Cutoff with Pitch (Serum)

Hello
I am new to serum so i need to ask this question here because i did not find the answer anywhere. I want to set serum to do specific thing : When i play lower notes, lowpass filter cutoff  is less opened, and when i increase the pitch (playing higher notes) the cutoff is increased.

P.S : Just to mention, i also using ENV2 to modulate it as well. (i don't know if this is important to mention) 

There is the keyfollow button in the lower-left of the filter section for that.  You could alternatively drag NOTE to the cutoff knob (if you don't want full depth).
P.S. this forum isn't for Serum support, please use the Serum forum should you choose to purchase!