Yeah that is what I thought it would give as a option too! In the object manager as for now, if I select a unwanted model, and right click it I only get a menu with: Rename, Copy, Paste and Delete.
I really have no wish to delete the 3D models, but it would be great to at least be able to select the ones to use as it allowed me in the previous versions. It is a bit confusing haha! I really appreciate you coming with a genuine good advise tho!