Migration Script Without Table Create Step

[Gary Johnson]

I'm setting up a batch migration from Oracle and would like to truncate the tables either before starting or in place of the create step. I've looked over the .lua script generated from the GUI and tried removing the create step, but it ends with a "The source objects cannot be migrated" message, even though the database and tables exist. Would someone advise me on how to modify the script to run without the creation step....tia, Gary