Hi and welcome,
To be honest, I don’t think you need the Generic Remote Device for this. What is your goal? If I understand it right, program BCF2000 so it sends these MIDI data. If you need a feedback of the current value of these controllers (on selected tracks) on your BCF, you have to send the MIDI data from that track back to BCF. You can do so for the dedicated MIDI Track (via MIDI Send). But do so dynamically (on the selected track…)? It Could be tricky. Maybe Quick Controls could help.
If you really want to use Generic are ote Device:
Set the MIDI IN and Out Ports first.
Click Apply!!!
Now, the Learn function works.