Implementing multi currency in Oracle Payable application

Dear Payable Guru:

We are currently on Oracle EBS R12.1.3 and running GL, AP, AR, FA, CE, PO, XTR, iProcurement, iExpense and iSupplier applications.

We have several GL chart of accounts and except one COA all are set asUSD currency. We have one COA with CAD currency.

Here is our questions:

We are currently manually process our international vendor payments via wire with their local currency. For example we pay our vendor payments in UK with British Pounds directly to our vendor bank manually via bank wire. Then we convert the

British Pound currency to US dollar currency and enter a manual AP invoice in Oracle for the same vendor with USD converted amount. Note: we'll not generate a payment for our Wire payment types from Oracle Payable.