Apple Logic Express 8 - Manual (Page 930)

930 Chapter 38 Working in the Environment
Physical Input and Sequencer Input Objects
The Physical Input object represents the physical inputs of your MIDI interface; the
Sequencer Input object represents the MIDI input of Logic Express. You can only have
one of each of these objects in the Environment.
To create a Physical Input object:
m Choose New > Physical Input.
To create a Sequencer Input object:
m Choose New > Sequencer Input.
To make use of an existing object, drag it onto the relevant layer. This will not affect its
cabling.