Finale is able to notate equal divisions of the octave (quarter-tones, 19-equal, 31-equal, 22-equal and so on) using any accidental symbols and midi playback without pitchbend, polyphonically on a single staff. The accidental symbols send the corresponding number of steps in midi notes while the instrument is pre-tuned in the equal division in question using a tuning script such as .scl, .tun, MTS etc. Dorico could very well implement this existing technique, as well as pitchbend messages, while we are waiting all these years for the new VST3 method. And in any case, it seems that Dorico’s microtonal implementation will lack Just Intonation and unequal scales, for which we’ll then have to recourse to pitchbend (as in Finale and Sibelius) - when midi editing becomes possible.