Cross fading two effects

Hey
Apologies if im missing out on something obvious. Im running  a stepbased effect in a cue and the LD wants to change the effect in the next cue. The problem is that  I am running the effects on the same channels in both cues and I am looking for the two effects to cross fade in the time of the cue is this possible ?
Cheers and sorry again if im missing something obvious

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