Mass Allocation for Foreign currency balances

Hi

We have defined a mass allocation formula to to distribute rent expenses to various departments. Rent expenses are paid in multiple foreugn currencies as well as in functional currency. We need to allocate using converted amount method as we want to allocate both fireign currency and functional currency balances at the same rate at which transactions happened. But for doing that, we need to define one formula for each currency. Is there a way to allocate all balances in entered and functional currencies using one formula?

Regards,

Sandip