The Currency setting is the one defined for your particular merchant account: the one that you do business in at your store or place of business. This is usually the currency that you receive payments in, as well. When you want to accept a WeChat Pay or Alipay+ payment from a customer, PayXpress Alternative Payments will display both your local default currency and the conversion to Chinese Yuan on the same payment screen:
However, in some regions, and for some customers, it may be possible to change the display currency shown on the payment screen. To do this, tap Settings > Merchant settings > Currency, and choose another currency if desired. Note that you will still be paid in the currency defined for your particular account.