This can be done easily, but I’m curious, were you successful to use the payment gateway with a multi-store plugin?
A number of people have complained that this is not possible, and is in my far future plans to provide support for at least one multi-store plugin.
Plugins that others have tried are:
– https://yithemes.com/themes/plugins/yith-woocommerce-multi-vendor/
– https://wc-marketplace.com/
But they report that the gateway does not work with them.
I have not had time to test yet. If you’ve had success, please share the plugin’s name.
I will add a switch that will control applying or not applying the internal fees, as discussed above.
kind regards