Previous tax codes

Within payrite on an Employees record there is a section whereby you can see all P6/P9's that were sent and when they were issued and what tax code/YTD details they included, this is really useful as clients as us when someone's tax code was changed. Within the ER portal there doesn't seem to be any way of finding this other than searching their individual payslips. Please can something be added in to we can easily look at tax code change history per EE