OK, here's the first (rough) version. So it will have bugs and little data validation.
- download the attached .zip file
- go to your Reaper / Effects folder (use [Options] > "Show REAPER resource path..." to get there)
- create a folder named "DarkStar"
- extract ALL the contents (2 folders, 7 files) of the .zip file into that folder
- restart Reaper
- load the FX "MIDI_MC_DS"
Click the [?] button for the operations guide.