Spectro Suggestion

I love Spectro! What an amazing tool!One thing I’d like to see is a free-form parallelogram that would allow variable frequency shaping over one region. For example, currently if I want to attenuate or boost frequencies gradually either horizontally (time) or vertically (across a range) I have to specify a number of regions to do this. This would also require control over the fade-in/out behavior (envelopes? Sculpto-EQ?)