Configuring MIDI : MIDI Studio Setup (Windows) : MIDI Studio Setup Window : Interface Controls
 
Interface Controls
Create
Adds a new instrument to the Instrument Name list.
Delete
Deletes the instrument or instruments selected in the Instrument Name list.
Import
Imports an existing MIDI Studio Setup file.
Export
Exports the current MIDI Studio Setup file.
Show Duplicate Emulated Ports
When this option is selected and you are using a MIDI interface that supports time-stamping, the MIDI Studio setup window shows both the DirectMusic time-stamped output ports, and non-stamped duplicate emulated output ports.
*Some MIDI Interfaces will not properly load or unload their drivers unless you quit and re-launch Pro Tools | First. Refer to the documentation that came with your MIDI interface for more information.