How to populate the Notes field under Manage Expense Payments

Summary:

One of the Columns in Manage Expense Payments says Notes. Where is the data for this field sourced from?

Content (please ensure you mask any confidential information):

The Overview, Assets, and Payments tab of a lease has a place for Notes. I've populated these three Notes areas for every single Notes Type in the lease. When I generate a search under Manage Expense Payments, the Notes field for a particular payment of a lease is not populated. How do I populate this field

Version (include the version you are using, if applicable):

25A

Code Snippet (add any code snippets that support your topic, if applicable):