System information
Adjusting assignable effects input levels
When the Sends control region is visible, each assignable  effects chain displays controls you can use to 
adjust and monitor the  input volume of the effects chain.
To show or hide the Sends control region, click the Sends button in the  View Controls pane.
Changing an effects chain's output device
When the I/O control region is visible, each assignable  effects chain displays controls you can use to set the 
chain's output  device.
To show or hide the I/O control region, click the I/O button in the View Controls pane.
To choose an output device, click the Output   button and choose a bus from the menu.
Monitoring output levels with VU/PPM meters
When the VU Meters control region is visible, you can display  volume unit (VU) and peak program (PPM) 
meters to help you determine the  perceived loudness of your audio signal (peak program meters provide 
faster  response times to volume increases than VU meters).
To show or hide the VU Meters control region, click the  VU Meters button  in the View Controls pane.
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