stop generating invoices

Hi,

I use https://wordpress.org/plugins/flexible-invoices/ plugin for generating invoices.
I currently sell in ONE country and invoice myself there.
I don’t want to use the generation of these invoices to other markets (I use WPML, so different currency equals different market).
So is there any possibility that using your plugin CURCY – WooCommerce Multi Currency, to disable the generation of documents in other currencies than the selected one?

Thanks
Pawel