How to specify multiple GGSCHEMAs?

• Extract: Use the schema name in each PDB. Each PDB with which the Extract is registered should have its own heartbeat table. To instruct Extract which schema to find the heartbeat tables in, use GGSCHEMA pdb.schemaname within the GLOBALS file.

Syntax

GGSCHEMA [container.]schema_name

Given the above how exactly do you go about specifying multiple GGSCHEMAS for use with multitenant? What if I want to use goldengate across a mixture of non-CDB and CDB sources?