
You can set the volume level of each channel strip independently, balancing the relative volume of the tracks in your project. You can also quickly switch between two different volume levels on a channel strip.
Do one of the following:
Drag the Volume fader up or down.

Option-click the Volume fader to return it to a neutral level (0 dB gain).
Press and hold Shift while dragging the Volume fader to change the volume level in finer increments.
The level meter, located to the right of the Volume fader, shows the channel strip output volume as the project plays. When you record, watch the level meter to make sure the channel strip volume is not too high.
Select an audio channel strip.
Drag the Volume fader to the level you want.
Use the Toggle Level of Audio Channel Strips keyboard shortcut.
Note that the channel strip’s Volume fader is all the way down.
Drag the Volume fader to a different level.
The Toggle Level of Audio Channel Strips keyboard shortcut now toggles between the two volume levels. It does so for all channel strips of the same type at once, allowing you to create two different mixes from one set of channel strips.
You can use the following keyboard shortcuts to quickly switch between two different volume levels on a channel strip:
Toggle Level of Audio Channel Strips
Toggle Level of Auxiliary Channel Strips
Toggle Level of Output Channel Strips
Toggle Level of Input Channel Strips
Toggle Level of Bus Channel Strips