Terrains - edit
You can make a change for each field in this screen. A number of fields have a star in the description, which means that these fields are obligated. The fields that don't have a star can be changed additionally. After you have made changes, you can save them to change the field. If there are already several relations to this terrain (e.g. because there is a building on it and a floor with a room in it to which an element is linked), the change made to this terrain will also be applied to the linked items.