I am a new joiner to Shopify and having some question about the multi-currency feature in Shopify.
1) Understanding the Shopify charges via their payment gateway, it has a table to list it out per transaction. If using multi-currency feature , any extra charges will be added to each transaction via the Shopify payment gateway ? e.g. default currency sets to HKD, the customer pays to GBP on their check-out.
2) the multi-currency can be set to some specific categories selectively, OR single feature for all categories and items ?
3) Multi-currency can be turned it on and off anytime ?