In your Shopify admin, navigate to Sales Channels > Online Store > Themes > Theme Library.
Click the “Edit theme” button.
On the customization page, you can control your theme completely via Settings:
To set up multiple languages on your site, follow these steps:
Go to the Settings of your store.
Select Languages (1)
Click Add Language (2) and choose the languages you want to display
For each selected language, click Publish to make it visible on your site.
To add multiple currencies to your site, follow these steps:
Go to the Settings of your store
Select Markets (1)
Click Add Market and choose the currencies you want to display (2)