CSV Exports file missing Invoice number

Hi, I want to export all the payments in a csv file.
The Invoice Number field is missing. Please can this be added?

These are the fields in the csv file.
Client Name
Payment Date
Payment Amount
Payment Refunded
Payment Applied
Payment Transaction Reference
Payment Currency
Payment Exchange Rate
Payment Number
Payment Method
Payment Status
Payment Private Notes
Payment Custom Value 1
Payment Custom Value 2
Payment Custom Value 3
Payment Custom Value 4
Payment User
Payment Assigned User


Feel free to create an issue on GitHub to request the change.