This video explains Custom Lineage in the Enterprise Data Catalog.

References:
https://knowledge.informatica.com/s/article/Steps-to-create-custom-lineage-with-examples?language=en_US&type=external

https://docs.informatica.com/data-catalog/enterprise-data-catalog/10-5-5/enterprise-data-catalog-scanner-configuration-guide/configuring-data-integration-resources/custom-lineage.html