Hello, tonglau. Welcome to the PayPal Community! Being able to select the currency you want to use is certainly an important concern. However, I'm not sure if you're referring to your balance, sending a payment, receiving a payment, withdrawing money, etc. To cover all the possibilities, please check out the information on the following pages.
How do I read my PayPal Balance? - https://www.paypal.com/hk/smarthelp/article/how-do-i-read-my-paypal-balance-faq1840
How do I withdraw my PayPal balance in different currencies? - https://www.paypal.com/hk/smarthelp/article/how-do-i-withdraw-my-paypal-balance-in-different-currenc...
How do I convert my PayPal balance to a different currency? - https://www.paypal.com/hk/smarthelp/article/how-do-i-convert-my-paypal-balance-to-a-different-curren...
Where can I find PayPal's currency exchange rates? - https://www.paypal.com/hk/smarthelp/article/where-can-i-find-paypal's-currency-exchange-rates-faq197...
I hope this is helpful. You can also find a lot of other information in the Help Center by clicking Help at the bottom of any page when you are logged on to your account. Thanks for being a part of the PayPal Community!
Sincerely,
Michael
PayPal_Michael
