DroidEdit - for Windows and Mac OS
Is a patch editor that uses MIDI to transmit the patch and editing data.
The first version of DROID-3 can not save patches internally but DroidEdit (at least the Windows version) can save them and even export them individually in the Standard MIDI File format. This allows for importing a into your sequencer where it will work like a regular Program Change.
If your MIDI interface or drivers do not allow for internal MIDI merging, using the editor will prevent your sequencer and mother keyboard from communicating with DROID-3. To play MIDI notes and use the editor you need virtual MIDI routing like MIDI Yoke Junction. One virtual MIDI connection is enough.