Reply to Traktor Echo Effect (fade out)

I've got a Xone DX and I'm running Traktor on internal mode.

I had a quick play about last evening with itch just to see how it compares with Traktor Pro. Anyway I noticed that some of the effects in itch such as the echo are set in a way when you kill the fader the echo fades out. I've tried to do this in Traktor but because the effect is selected to one of the channels as soon as I kill the fader everything stops. I used to do this effect on my DJM800 and would really like it back. Does anyone know how to recreate this in Traktor. If you understand what I'm getting at.