You're talking about a Multiply function. That's a great feature to have on a looper, but in my experience it's of limited utility when you have less loop time, and given that Eventide has already said that an H9 loop algorithm won't have any more memory than the TF looper (12 sec, IIRC), I'd prefer to see the code space go towards features that are better suited to that situation. YMMV.
