Add "Invoice number" field to "Search in the financial information" report

It's not possible to do a global search into  "Invoice number" field from Asset's financial information through  "Search in the financial information" report. It would be a must-have feature because on Brazil the suppliers uses this field to track debits payment (e.g. if you forget to pay a parceled out debit, they will send only the "Invoice number" field so through it you'll have to track it down to know what asset that debit is related). 

Actually it's necessary to do a individual search into "Assets" > "Global" to be able to search "Invoice number" field and if it's not found you need to do an individual search into every element from "Management" tab to search "Invoice number" field.