Customization of Create Customer Statements: Generate Log(unable to edit dataset)

Summary:

We have a requirement to add the receipt date and receipt number to the standard 'Create Customer Statements: Generate Log' report. We're trying to achieve this by customizing the report through modifications to the data set query. However, when we make changes to the dataset, some existing fields get removed. It appears that these fields were created based on other existing fields at the dataset level. We're not sure how the standard report was built to derive these fields from others.

We need assistance in customizing the Customer Statement report without impacting the existing fields.

Content (please ensure you mask any confidential information):