Custom parameter in language switcher

Hi,
loving the plugin for my client’s site!

I’ve wondered if it’s possible to add a parameter to the URL of the language switcher? We’re currently using it for translating Woocommerce and would like to switch currency at the same time as the language, so the URL would look something like this: https://mydomain.com/de/shop/?currency=EUR. We’re using WooCommerce Currency Switcher by WooBeWoo.

Of course, I can make a custom link in the menu like this but it wouldn’t be dynamic based on the site I’m viewing and will always redirect me to the shop page.