To Add a new structure to an authority's structure listing first click Open Structure from the Actions menu, then click Add new structure from the same menu.

The Add New Structure page will open. Here you will be able to give the structure a name, identifier and use the drop-downs to specify the structure type, Authority and Owner Type. 


Click the Next button to add the structure to the structure listing. At Step 2 you will be able to specify some initial dimensions for the structure.