Editing audio track that has been created by unmixong using Spectralayers

How do you open an audio track for trimming etc that has been created using SpectraLayers extension? When I double click the track it opens in SpectraLayers editor - I want it to open in the normal editor so I can trim audio parts, change levels etc etc like I normally can. I have read the post in Jan 2021 on this very topic (Audio-Editor and SpectraLayers - #2 by Martin.Jirsak) but the sole reply wasn’t clear to me. Any help or clarification on this would be appreciated. Thanks.