To make a change, an adjustment can be made within this screen per field. A number of fields have a star in the description, which means that these fields are mandatory to fill in. The fields that do not have a star can be changed additionally. After you have made changes, you can save them to change the building part. If there are already different relationships with this building part (because, for example, a floor has been installed in it with a room to which an element is linked), then the change that is made to this building part is also carried out to the linked items.