Wordless media—sections of your script that don't contain speech—will appear as waveforms in your script. You can edit these sections just like you would a text document. You can correct, copy-paste, delete, or ignore wordless media from the script, and the underlying video or audio will also be deleted.
Show or hide wordless media in your script
If you would like to show or hide wordless media in your script, you can do so in the top menubar of a project by selecting the menu and then choosing Help & Feedback > Debug > Show Wordless Media in Script.