Change the gain of audio regions in Logic Pro for Mac - Apple Support

You can change the gain of audio regions with the Gain tool, or in the region or cell inspector.

General Audio settings in Logic Pro for Mac - Apple Support

Gain plug-in in Logic Pro for Mac - Apple Support

Edit in the Audio File Editor in Logic Pro for Mac - Apple Support

Logic Pro User Guide for Mac - Apple Support

Channel strip controls in Logic Pro for Mac - Apple Support

Get started with mixing Logic Pro for Mac projects - Apple Support (MT)

Get started arranging regions in Logic Pro for Mac - Apple Support

Zoom windows in Logic Pro for Mac - Apple Support

Change the Audio File Editor waveform amplitude scale in Logic Pro for Mac - Apple Support (IS)

Region gain / Volume : LOGIC PRO X : SINGLE FUNCTIONS

Import compressed audio files into Logic Pro for Mac - Apple Support

Logic Pro for Mac All Files Browser interface - Apple Support