Does the PC3LE USB interface give "pass-through" access to the MIDI DIN ports?
If so, does it show up in the Mac's 'Audio MIDI Setup'?
If so, how does one access the DIN connections from the mac?

My setup: a 2012 macbook, PC3LE, and a K2000R.

The connection stream I'd like to have is:
macbook - USB cable - PC3LE - midi cables - K2000R.

My goal: have webmidi in a browser talk to the K2000R through the PC3LE.
Thanks!