How do I remove a HSB content from the HALion 4 MediaBay?

I just imported an old HALion 3 HSB content into the HALion 4 MediaBay and now I would like to remove it - but I can’t find out how to do it. Does anyone know?

Well, I found a way to do it… not very smart but it works. I moved the original HALion 3 HSB content to a new folder and next time I started HALion 4 it stated that the content was missing an I got the options to locate it, ignore it or remove it. So I removed it.