Routing outputs in Halion 5

I am new to Halion and I am playing around a bit. So far I am not successful in routing different programs within Halion 5 to different MIDI channels inside Cubase.

Please help me clarify things based on the snapshot uploaded.

  • If I understand sright the red colored box means, it’s the Channel No corresponding to the Program No inside Halion 5.
  • What does the drop-down menu showing different “Out #” mean?
  • What is the purpose of ports A, B, C, D?
    Halion 5.png
    Thanks in advance.