Can I exchange money at the 'Buy Button'?

[dosoonjung]

I live in Korea and I want to make a 'buy button' that allows you to pay not only in the Korean exchange rate, but also in various exchange rates.

Currently, I am trying to use the payment function by inserting an HTML code into a site called 'Webflow' for the purchase button through 'Light Plan'. We plan to pay in Korean won, dollars, and other currencies. However, when I try to pay through the purchase button, it seems that I cannot set the exchange rate. Is there a way?
In the case of shopping malls created by Shopify, there are several programs that help you change the exchange rate in the 'app', but there is no app that uses the light plan to change the exchange rate tailored to the person who uses the payment function with the purchase button without operating the site. I see it. I'd appreciate it if you could tell me an alternative.
For example, in the case of the 'currency_switcher' app, you can switch the exchange rate by putting a little code in 'theme.liquid' in the site design setting of the Shopify shopping mall, but it doesn't seem to be able to be used in the 'buy botton'.