Do not automatically remove objects from a view

When an object is removed in BlueDolphin based on an automatic loading process, this object is automatically removed from views, so that the manager of the view is not informed about this change. That is unworkable.
When deleting an object in the library, keep the object on the view. This is allowed without metadata and, for example, framed by a red border. It is best to add a label choice so that you can make obsolete objects transparent on a view.