There isn't currently a way to toggle between bank accounts on a single account, but there are a couple options. 

As you suggested, you are welcome to create another account (you can have as many as you'd like!); you would just need to sign in to the account you would like to use in the app, prior to taking the payment.

Alternatively, you can setup a new "Location" under your existing login. This would allow you to link a different bank account to each location. Read more setting up location in our Support Center. Hopefully that helps!