This request require something ver complex, perhaps beyond the reach of actual technology.
If you would give a few velocities for pianoteq, for each key pedal down, instead of jus any music played on the piano, things could be easier.
But even so the pianoteq technology, for a precise timbre recreation, require a detailed analyze that take a relative long time.
In the best, with actual technology, you could get a pianoteq piano model, similar to a given piano you want to try to emulate, and wait to they develope a key by key analyze to pianoteq automatically adjust the parameters (the ones available in Pro version interface and the ones hiden in the progran plataform) to try to match the best as possible.