Logic Pro 9 DP user stock in Logic


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I'm on a deadline. Running Kontakt 4 as a plug-in with Logic 9 - all is OK loading upto 16 tracks (Port A)... I need to move on to Port B, D, C with another bunch of 16+ tracks, etc... How? Is there a button, menu? In DP it's automatic. How does Logic address 4 ports? Is it in the Environment window? Is it in the manual? Please...

Mac OS 10.6.4 Quad-Core, Express XT, DP 7.12, Logic 9.1.1, VSL, MachFive2, Kontakt 4, etc.