is it possible to have more than one bank account per store, and then designate which account payouts for particular products goes into?
I'm hoping to entice someone I know into consigning some products to me, but I think he'll be hesitant unless the money goes straight to him rather than have to wait on me to pay him after the fact.
I can only speak for Shopify's own gateway, Shopify Payments, where this would not be possible. All payouts would be paid to a single account, the details of which are provided when the merchant enables the gateway. This may be possible for third-party gateways that can be used on Shopify, but that's not something I can confirm directly—you'd need to enquire with the payment gateway directly to get an answer on this.
If you're needing suggestions on which gateways are available in your region, you can choose your country on this page and see all gateways available for you to use.
Victor | Shopify Social Care