Hi Eams,
You currently cannot influence the output of this field, which is the DESCRIPTION field of report type CLASS.
https://www.ibm.com/docs/en/szs/3.2.0?topic=table-class-field-descriptions#select_list_fields_class_field_descs__DESCRIPTION
The value comes from an internal knowledge base.
We have heard the requirement before to set this value for an installation-defined class, or override it.
You might want to express your concurrence on Ideas ZSECURE-I-618 and ZSECURE-I-265.
Regards,
Jeroen