2822994 - Does the Class connector offer a way to add a secondary instructor to a Class?

When adding instructors to a class via the Class Connector, in the header, there is a column for primary instructors labeled INST_ID1. Does that mean that the column INST_ID2 adds secondary instructors to the Class?

SAP SuccessFactors Learning

connector, class, user, instructor, secondary, admin, custom, extension, enhancement, column, header, INST_ID1, INST_ID2 , KBA , LOD-SF-LMS-CON , Connectors , LOD-SF-LMS , Learning Management System , LOD-SF-LMS-SCH , Class - Scheduled Offerings , Problem