Hello @Denton0,
I'm afraid that it's not possible to do that. You gave a great clear description of what you mean.
All Airbnb allows us hosts to do is split payments for a particular listing with some % going to one account and the rest to another account or to have different accounts for different listings.
They don't let us make any choices based on currency. They most likely make a good portion of their income by keeping control of currency transactions.
Even if you have a $US account in Canada and your guest pays in $US to that account there may still be currency conversion charges.
Can I choose my payout currency?
Steve.