So for anyone interested I found a solution to this with the zl objects. I set created copies of the sliders and had them set to threshold and inverted threshold interp respectively. This way one would jump to preset 2 while the other would remain at preset one. I then split the difference and added elements of the missing data two a fourth table according to the size difference between the lists. the only mystery now, aside from how annoying this will make it to save presets, is this. The recall messege works well with this method. The recall mulit method does not. I can’t figure out why. Anyway, I hope my rambling to myself helps someone searching for this sort of thing.