Hi,
why don`t you try that the Harmony emulates a MCE?
cellardoor
In the iMON software you need to tell it to receive MCE codes. Everything else works the same - you map the buttons to keystrokes/macros/etc as per normal.
The major problem with this is that if you use the MiniDisplay plugin in MP to control your LCD/VFD, it loses the ability to receive MCE codes. So you get to choose between a useful LCD/VFD, or MCE codes. Plus you still only have the option of producing keystrokes.
Well, I wouldn't throw in the towel completely as my 880 works great with imon. You can do it, it just takes a lot of effort... more than it should IMHO!