Get there, should be able to unclick the lock button in mesh manager and as long as the mesh is not in use it will delete from the project. Then you save the project file
Hey Sean this method is not working in the most recent release at least - the mesh will disappear from the mesh manager true but it will stay in the BB file - 2 ways to confirm that they are not deleted, one is the size won't change much , second if you open the BBdoc with Rar extractor you can see the individual folders the mesh folders will still have the deleted objects, I may be missing something but I have been trying to rid of un wanted asset with no success .if you have different ways to delete remove objects would be very helpful?