Open the Items & Orders section and select Modifiers.
Click the Add modifiers button.
Enter the modifier's Display Name, Category, Tax group, and Price.
To upload an image for the modifier either Choose a local file or drag and drop a files.
Click Save to save the modifier.
Note: If you check the "Hide from cart and kitchen" option, the item will not appear in receipts or the cart. This is useful for hiding modifier group names.
If required, you can also check "Sold individually" to make the modifier a separate item.