M-Audio keystation49 with Reaper - transport buttons not working
I have this keyboard working fine as far as being able to assign the volume slider, pitch and modulation wheels to various actions. But I can find no way to get the transport or directional buttons to do anything.
I have the manual, which states that "MIDI, Mackie Control and HUI controls are sent on Virtual Port 2". I can select each protocol on the keyboard, but have no idea what "virtual port 2" means, or how to get it! (Some searching online was informative, but I need specific advice here.)
I found a good youtube demonstrating connecting a keystation61 to Reaper, where the transport buttons worked directly without any messing around: https://www.youtube.com/watch?v=LQvYRyKYpRA (from 10:00)
BTW, I have tried various settings in Control/OSC/web, but no joy there.