Using Kontakt standalone with Reason so you can use multiple midi channels.
If you are new to midi loopback then please see the Beginners guide to EMI and Midi LoopBack in Reason
• Beginners guide to EMI and Midi LoopB...
Windows Loopback (LoopMidi) software I use can be found here.
http://www.tobias-erichsen.de/softwar...
Jack audio routing here.
http://jackaudio.org/
For Mac users.
Setting up Midi ports (loopback) of a Mac.
The IAC bus allows you to create any number of virtual MIDI buses. This driver is built-in to OS X (since OS X 10.4) and can be activated in the Audio/MIDI Setup Utility.
To begin, launch Audio/MIDI Setup and select "Show MIDI Window" from the "Window" menu.
Now double-click the IAC Driver icon and check the option "Device is online" in order to activate it.
Add the ports you need from within this window.