iExpenses -VAT at expense line level

We have a requirement in iExpenses for Colombia where the user needs to be able to select from a list of VAT rates by expense type. My understanding is that there can only be 1 VAT rate/type setup per expense line on an Expense Report template. Is there a localization or other functionality that will enable us to be able to select from multiple rates (8%, 10% 18% etc) per expense line?