Bank requires supplemental file

[rayjlinden]

Our bank (CFSB) requires that a supplemental file also be generated with each ach file.
Here is their document describing the format of this file (and naming convention).
ACH_Origination_Supplemental_Data_Layout_v1.4.pdf

A good chunk of the data needed is duplicative of what is in ACH anyway. However, it also asks for data paygate currently does not collect. Things like address and DOB. I think the intent of this is to pass on some KYC type info to the bank for its evaluation.

I do not believe this file is part of any standard - but something this specific bank requires. Any idea how we might handle this type of requirement with paygate?