is there a way to turn off the delay but leave the trails ...

What I mean is when i use a midi controller to control the delay like the fcb1010 with the eureka prom , clicking the delay button off . simply chops off any remaining spillover or trails . Is there a way to use midi to mute the input to the delay but leave the delay decays?

I know you can do it when changing rigs , but why not when simply turning off the delay ?

Thanks

hmm , looks like there are two midi cc controllers 26 and 27

so the eureka eprom is issuing the one that doesnt leave the delay trails , and theres no way to change it .
Ok so I guess I will toss the eureka eprom anyone have experience with he uno prom ? does it work correctly?