The only place I cad add codes is next to General Ledge account and then the code appears in every transaction line and not in each account heading.
You seem more concerned with formatting than information extraction. No auditor has the right to insist on a format. The information they ask for should be acceptable when presented in a manner provided by your accounting system.
Incidentally, the General Ledger Transactions report is organized in the same order within groups as your chart of accounts. If you want that in order of account codes, rearrange the order in Settings.
Yes, after my corrections to customers and suppliers, the General Ledger Transactions Report does appear to be meeting the auditor’s preferences. Thanks again for your advice.