Delighted to hear again from you, @StPeter.
I can provide you with additional details on how to view your reports that displays both the parent and the sub-accounts in your chart of account. Let’s get started.
To start with, may I ask what specific report are you trying to access? With QuickBooks Desktop, it has an array of reports that will allow you to customize and filter to display the specific information you need.
On the other hand, when creating an account in the chart of accounts, ensure to enter a specific name for each sub-accounts.

By doing this, you'll be able to distinguish each sub-account from the parent account.

On the other hand, you can generate your Transaction Detail by Account report to view all of your transactions for each account in the Chart of Accounts. 
That should do it! Feel free to visit us here in the Community if you have other questions about generating transaction reports in QuickBooks Desktop. I'm always here to help.