True custom target and corrections curve inputs files

Reference is very cool :) one thing tho id would find cool improve:
It would be nice to be able to input custom text files (ie the way mic calibration files works) for custom target and correction curves. ,  ie when using external soft/hardware,  if  wana emphasis or reduce only a part of correction, or if after correction , there are still slight mesured peaks/holes here or here. being able to tame them further all in once would be great rather than put another EQ behing and add extra latency. think this way would be most modular for several scenarios.
one way i see it would either be build in extra EQ layer (more complex i guess ideally editable bezier curve fft or parametric muti points/types) or prob simpler either a bezier curve 'multiplier' or first simpler maybe  just find a way of convert/extract binary datas of presets to/from user editable text datas arrays, and implement importable custom curves man either manually edit or use external software to process/generate.
that could be also useful to ie average a set of several measurements.
hope that make sense^^