From what I have read is that you want the same house curve applied to all speakers. For example, if you want your room curve to be -6 from 20hz-20khz. You could then apply that same house curve to all of your speakers. I don’t think it makes sense to have different curves for each speaker. Withe the current app, you have to “redraw” the curve for every speaker pair. This is a waste of time.If you could simply create the curve you want, save it in the app, an then apply it to whatever speaker pair you want would make sense. Or like Dirac, you can group your speakers and apply 1 curve to that group of speakers.
In regards to the microphone... it works fine for the most part, but I don’t think it works that great at higher frequencies. If you could use a calibrated microphone such as the UMIK1-1 the measurements would be much more accurate.