Actually not in possession of it (yet, being delievered today...)
As I understand it, the MicroBrute doesn't utilize much, if any MIDI other than the keyboard. So my intention with MIDI Designer is to simply make the changes via knobs and sliders that aren't actually set to send the MIDI data, they're there simply for reference.
So say I design a Bass patch on the hardware, I then mimick the knob/sliders settings in MIDI Designer, then save it somehow. Theoretically, i could then recall that particular Bass patch in MIDI Designer to reference when I make the actual changes on the hardware.
EDIT: OK, now in possession of the MicroBrute; hooking it up via USB to MAC OSX and watching MIDI Monitor, the only things it seems to transmit are note, pitch and modulation. Which I was aware of. Again, wasn't expecting MIDI Designer to control those paramaters, what I'm looking for is ways to save, say, snapshots or somesuch via MIDI Designer.