Keep the same message tab open when switching between ServiceV Requests/Responses

When you have several requests that came to a ServiceV mock listener, and you're looking at them in the transaction log, it would be nice if as you looked at each one, that the tab that you selected when viewing a message (e.g. JSON or Raw) remained selected when you clicked on the next message to view, instead of always switching back to XML each time you click then ext message.