How to add Intermediary Bank account field for Customized ISO20022 Payment Format

Summary:

Hello,

We need a customized ISO20022 Payment format with the intermediary bank account fields.
I followed the doc ID How To Add Intermediary Bank Fields for Customized ISO20022 Payment Format. (Doc ID 2570556.1).
This document is very helpful to add the tag <IntrmyAgt1> but we also need the tag <IntrmyAgt1Acct>

Content (please ensure you mask any confidential information):

How could we add the tag <IntrmyAgt1Acct> to our customized ISO20022 Payment Format?
Thanks and regards,
Mariam

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