Open Project Audio… ⌘8 – Logic Pro keyboard command of the day (KCotD)

  Open Project Audio…    ⌘8

Opens the Project Audio window. Project audio is also available in the Main Window (click Browsers button in control bar, choose the Project tab).

Logic Pro Project Audio Browser interface – Apple Support

The Project Audio Browser shows the audio files used in the project, and displays an overview of the regions derived from each audio file. You can add, edit, delete, and rename audio files and regions in the Project Audio Browser.