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.

Set Flex & Follow for audio regions in Logic Pro for iPad - Apple Support (JO)

Manage Logic Pro for Mac content - Apple Support

Normalize audio files in Logic Pro for Mac - Apple Support

Bounce a region in place in Logic Pro for Mac - Apple Support

Logic Pro for Mac inspector interface - Apple Support (ME)

Export regions as audio files in Logic Pro for Mac - Apple Support

Advice for track volume changing on its own : r/Logic_Studio

Audio Devices settings in Logic Pro for iPad - Apple Support

Change track icons in Logic Pro for Mac - Apple Support (CA)

Change the gain of notes in audio regions using Flex Pitch in Logic Pro for Mac - Apple Support

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

Logic Pro User Guide for Mac - Apple Support

Use the I/O Labels window in Logic Pro for Mac - Apple Support

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

Reduce sibilance in Logic Pro for Mac - Apple Support (AM)