anyone confirm my thought that you cannot inline edit the status of a transaction from a list?

Transaction statuses are generally derived by other attributes... I don't think it's inline editable.

You could do this with a combination of workflow and custom fields

Some statuses are based on line attributes... I have not used workflows on sublist so I can't speak on that. If you're referring to automation, then yes I agree you can... In fact with scripts almost anything is possible. Some would require creating additional transactions.

Yeah it was specifically editing the value form a list, thanks. This is based on logic I'm building in a UE script but I know now the route would be to go via the Transaction Approval screen 😉