I looked at it, but ran into a technical wall. The Polytope is already maxing out the capabilities of its DSP, so I wasn't able to squeeze another filter in without losing some other feature.
Right now I'm working on getting some all-new designs out, but after that, I'll revisit the Polytope and look at ways to add more features to it.
Edit to add: I'm totally interested in doing some special editions that have extra functionality, and I think it's about time for it. There are cool things in the works.