Apple Logic Pro 8 - Manual (Page 241)

Chapter 10 Working With Instruments and Effects 241
4 The newly created multi instrument object is called (Multi Instr.). You can rename it
later (usually after your synthesizer name; JV5080, Microwave, and so on).
 You will note that there are diagonal lines running through each of the 16 sub-
channel boxes.
 Also note that the Port and Channel parameters are shown to the left of the
Environment window.
5 Click on the Port menu, and choose a new MIDI Out port for the Multi Instr. object.
Ensure that this is a different port to that used by the GM Device object.
6 The last step is to activate each sub-channel. To do so, simply click on each sub-channel
box. As you do so, the diagonal line will disappear from each.
7 Click the Mixer button at the bottom of the Arrange window, and you’ll see 16 new
(Multi Instr.) channel strips.
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Tip: Once an object has been created in the Environment (using any of the methods
described), you can Control-click on track names in the track list. Choose the desired
port and sub-channel from the Reassign Track Object menu to quickly reassign tracks.