Creating a large phenome slider for animation

Using Duik Angela, I am creating Duik KeyMorphs for each of my phenomes and mouth emotions (40 total). I can create a 40-slot slider to easily select from these 40 mouths, but it's a really long slider and I'd like to break it up into two columns of 20 each. The problem is, that each way I've seen to create this seems to rely on multiple pre-comps. However, I want Duik to have the ability to morph between these keys, and it seems to do this I need to have all 40 in the same KeyMorph grouping. I don't see how Duik could morph between keys in two different PreComps. So, is there any way to do this?

I am toying with using a 2D slider and I adjust it to be really tall and narrow and then finding some way to have the place I move the dot in that 2D slider to select a specific KeyMorph Key. But this seems like I'm inventing the wheel and someone else has surely encountered this many times already. But based on the quality of tutorials online, and complete lack of current Duik forums or knowlege base, I'm fairly confident there are less than a dozen Duik users globally -  so the odds of anyone being familar with Duik is roughly 0.0%  But if you are one of those 8-10 people on the planet using Duik, I would love any suggestions!