EPBCS: Setting up different Approval units assigned to the same Scenario/Version

Summary

EPBCS: Approval units are setup by Cube but only one approval unit can be assigned to a specific Scenario/Version combination

Content

Good day,

I already have an approval unit setup for the Finance module in EPBCS.  I would like to set up another approval unit for the Workforce module however, I can only assign one approval unit to one Scenario/Version combination at a time i.e. Plan->Working and the different modules/cubes use the same Scenario/Version combination.  I am perhaps misunderstanding a basic principle or how do I go about setting it up?

Thanks

Jennie