As the new UI got introduced recently, it may take some more time for users to get used to it.
Till then it would be nice if a new Trigger Predefined Action item be added pointing to the "Old Configuration UI" as a list item would be really helpful, so that the Old UI can be opened with a shortcut combo.
You could make an apple script shortcut opening the old UI from the BTT dropdown menu.
Otherwise using the new UI with the list view could be a possibility too.