To add multiple Line Item VAT Tax Prices, follow these steps:
1. Click the "Add Field" button and search for the "Line Item VAT Tax Price" field.
2. Add this field and proceed to the page where you can specify a custom name. You can modify the "VAT" name to the desired tax name and update the field name accordingly.
For example: "VAT" (as in the sample of image below)
3. If you want to add another "Line Item VAT Tax Price" field, repeat the first step.