The transformation is shown if the column (expression) is using at least one column from another connected transformation.
Collibra Data Lineage supports input transformations in mapplets but does not support source definitions in mapplets.
The stored procedures are stored and run in the databases that Informatica PowerCenter connects to. Collibra Data Lineage does not access the Informatica PowerCenter data sources, so Collibra Data Lineage collects the stored procedure names but does not support the Stored Procedure transformation.