I hope this helps..

One could probably create a very good editor in Max/MSP http://www,cycling74.com
Not only is it stable from a MIDI perspective but it has the DSP power to create new waveforms.

-I'm sorry I can donate time to this project, not onlyy do I not own the A-112 but I have head deep in another Max/MSP
project.

This software is worth looking at for anyone who is not satisfide with options in other more commercial applications or needs
for customized working envirornments.

TD