I recreated the situation in a test business for screenshot purposes. In real life I have a long list of customers, of which some have even ceased to exist. It is inconvenient to have them all mixed up in Summary. Can inactive customers be greyed out if not eliminated from this page?
From Customers tab I made some customers inactive:
When I drill down from Summary into Accounts Receivable I see all the customers in alphabetic order whether they are active or inactive:
PS. I noticed the same logic in Special Accounts, Cash & Bank Accounts, and in Suppliers.