Wish there is an option to include Mexico "proporcion utilizada conforme LIVA" percentage to be applied towards VAT total receivable (e.g. VAT tax type towards expenses or purchases) for purpose to get eligible result to deduct from VAT payable (tax to be supported or tax of grand sourced sales invoices).

Example:
total revenue invoice activity / divided by the grand total of income
usually the factor is "1.00" but sometimes could be ".98" or ".95" factor to be applied towards VAT IVA

REFERENCE
SAT articulo 5
https://www.sat.gob.mx/articulo/46936/articulo-5