The easiest way to get a selection of instruments playing in a DAW, is to use midi channels. the limit is that you have 16 possible groups per DAW project.
You can load MIDI Guitar’S VST in Reaper and switch its patches per footcontroller.
Every patch has a unique midi channel, to which an instrument track can tune in.
Here is how it is done:
- inside MG, use the “channel select” midi machine within a patch.
So your patch is assigned to a midi channel. - In Reaper, open I/O for the receiving instrument, and “add new receive” from the MIDI Guitar track. Then map the appropriate midi channel, like shown in this picture.
Assigning a footcontroller to MIDI Guitar to switch the patches is done the same way:
- add a track in Reaper, name it “footcontroller midi”
- select midi input from your footcontroller.
- add receive in MIDI Guitar’s reaper track, and let it listen to “footcontroller midi”
All midi data from your footcontroller is now tunnelled through MIDI Guitar.
But you might want to have a direct connection between your synth and your footcontroller (controllers might get “eaten” in MIDI Guitar)
You can do this by adding a second receive in the instrument tracks I/O, receiving the “foot controller midi” track.