I'm using a custom 4-button foot pedal that acts as a 4-note MIDI controller (C0, C#0, D0, and D#0). I have a looper plugin (LoopmanPI) that is controlled by 4 buttons, Play/Record, Stop, Undo, and FadeOut.
I'm using the plugin as an effect on the Master track (so I could record whatever I play as I hear it, whether it's a guitar setup on track 1, a drum machine setup on track 2, or whatever). I've added 4 automation lanes to my Master track, one for assigning the appropriate Remote Control | Note On message to each of the 4 VST functions.
It works great, except for picking up the same Note On messages from any of my MIDI controllers (like my MIDI keyboard). I don't see a way to filter the MIDI input to only act on my foot pedal, or a way to reroute the foot pedal to another MIDI channel. Is there a way to do either, or something else?