System Configuration : I/O Setup : I/O Setup Buttons

I/O Setup Buttons
Depending on the I/O Setup page, the I/O Setup can provide the following buttons for configuring signal routing.
 
New Path Button
Lets you create a new path on signal path pages for Input, Output, Insert, Bus, or Mic Preamp.
New Sub-Path Button
Lets you create a new sub-path on signal path pages for Input, Insert, or Bus.
Delete Path Button
Lets you delete any selected path or sub-path on signal path pages for Input, Output, Insert, or Bus.
Import Settings Button
Lets you import an I/O settings file to reconfigure I/O Setup. Import Settings only imports the settings for the currently viewed page of the I/O Setup (such as the Input page).
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Option-click (Mac) or Alt-click (Windows) the Import Settings button to import settings to all pages of the I/O Setup.
Export Settings Button
Lets you save I/O settings as a file that can be imported into other sessions or used on other Pro Tools systems. Export Settings exports the settings for all pages of the I/O Setup.
Default Button
Resets a path type to its default path configuration, depending on the physical hardware I/O you are using and how your hardware is configured.
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Option-click (Mac) or Alt-click (Windows) the Default button to restore defaults to paths in all pages of the I/O Setup.
Show Last Saved Setup
Appears in the I/O Setup in certain session transfer situations. For details on this feature, see Show Last Saved Setup and Show Current Setup.
Pop-Up Menu Selectors I/O Options
Provide selectors with pop-up menus to set paths or orders. The Output and Bus pages provide a Controller Meter Path selector. The Output page also provides selectors for Audition Paths (Clip List and DigiBase previewing), New Track Default Output, Default Path Order, AFL/PFL Path (Pro Tools HD and Pro Tools with Complete Production Toolkit only), and AFL/PFL Mutes (Pro Tools HD and Pro Tools with Complete Production Toolkit only). See I/O Setup Options.
Cancel Button
Closes the I/O Setup without saving changes.
OK Button
Closes the I/O Setup and saves any changes.