Use Automap
The Automap process searches for tables in source models to map to tables in the target model. It creates only direct 1:1 mappings. It does not change existing manual mappings. After running it, you select the mappings you want to use.
For details on the automap process, see this video:
For more details on the Automap feature, see FAQ How does Automap work?
Parent topic: Map at the table level