In this documentation, we can check how to add currencies in Zen cart.
1) login to Zen Cart admin panel.
2) Go to the tab ‘Localization’.
3) Click on the button ‘Currencies’.
4) Click the button ‘New Currency’.
5) Enter the details.
6) Click the button ‘Insert’.
That is how we can add currencies in Zen cart.
If you need any further assistance please contact our support department.