I'm discovering the storyboard on Vegas 17 trial, coming from V12, I've followed the guide on this page https://www.vegascreativesoftware.com/us/video-editing/creating-video-storyboards-to-accelerate-workflow/

but when I copy a cell from the Main timeline bin that has In and Out points (i.e. a clip) the pasted cell in the Unassociated bin loses these points, starting the file from the very beginning, therefore not copying/pasting a "clip" but an entire file, making the process useless.
What am I doing wrong ?