How to customize the Ageing Details report to show ageing period on columns instead rows? Like Ageing Summary report, but showing the details of the invoices/bills.

Hi Michell1, 

Thank you for reaching out on this. 

Unfortunately said customisation is currently not supported by QuickBooks Online. I would like to encourage you to submit an in-product feedback as a feature request for this. Here is how:

How do I submit feedback?
- https://quickbooks.intuit.com/learn-support/en-us/feature-preferences/how-do-i-submit-feedback/00/185775

Thank you.