that would certainly be a very interesting thing to add, but in the current iteration that is not possible.

The biggest issue here is that there's not really "one" microtonal system out there. The entire fretboard of a conventional guitar is mapped to work in 12tet - and the libraries I'm using to do all the musical operations also only supports 12tet.

to accommodate all the microtonal temperaments out there would be a pretty daunting task. But I'm not saying never!