Structure attributes (only for structure).
Structures, similar to products, have their own basic data for attributes. These attributes are almost identical to product attributes but constitute a separate set of basic data that only applies to structure nodes.
Structure attributes also do not have any grouping; there is only one group for structure, and there is no need to associate them with a product type.
When it comes to data types and functionality, these attributes are completely the same as for products, just that these are only available on structure nodes.
Structure attributes must be assigned desired functionality through development.