How about one like the Logic Pro X Channel EQ where you can have 8 “controls”, either set as low pass and high pass, then notch or shelf, and obviously for each st the frequency, and either Q or slope. It is sort of absurd to have to put two filter algos in series to get low pass, then high pass, then put a standard EQ in series as well to get parametric. That’s using 3 algos and a clumsy interface instead of one nice algo, If I had the time, I’d take a shot at it with VSig but not gonna happen.