Hi Sam,

It can't be completed in one step, but it can be processed. Setup a CHF bank, in both AP and BR consider it a flow thru bank. Record the payment in CHF against the vendor account and then do a bank transfer between your CHF bank to your USD bank. If you could be sure the correct rate would be loaded in the system you could setup a rule to auto-transfer. But it is likely cleaner to use the correct exchange rate if entered manually. The entry could be done at the time of entering the payment as a batch in BR or part of the USD bank reconciliation create batch.

Lauren