iExpense - multiple threshold rates

Hello

I need to create 2 Policy schedules for Mileage.

1. Mileage Schedule Union X. Threshold is 0-5000 = $.050 and >5000 = $.045

2. Mileage Schedule Union Y. Threshold is 0-5000 = $.075 and >5000 = $.050

Oracle does not allow us to assign more than one threshold mileage schedules to multiple Templates.

I assign the first policy to an Expense Type

When I try to assign the second policy to another Expense Type, I will get an error that "A different mileage rate schedule that uses the cummulative distacne thresholds rule is already in use for this Operating Unit.

Any suggestions how to do this ?

Thanks

Len