post https://api-us.bluestonepim.com/pim/catalogs/nodes//attributes//matrix
Creates a new matrix Category Level Attribute (CLA) for the specified catalog node/category and schedules a
propagation task. This operation is useful for managing matrix attributes across multiple catalog nodes
efficiently. Propagation means that the CLA will be added to all products in the category and all underlying
subcategories.
For more detailed information on how to work with Category Level Attributes in Bluestone PIM, refer to our help
pages Category Level Attributes (CLA).