You find the explanations for the section Appearance in the chapter Text Element. For Text you enter the zip code. Under Design you can state the name of the element. You can read about how to configure the settings of the section Layout in the chapter Text Element, for the section Behaviour you continue reading in the chapter Rich Text Element.

 

The width of the numbers can be found in the section Behaviour in the row segment width.

 

These were the configuration options for zip code.