Use the most recently used Locale as the default
The default Locale is currently "English - United States" for all new data sources. Please consider using "English - United States" as the default Locale only for the 1st data source, and using the most recently used Locale as the default for all subsequent data sources. This saves the user from repetitive Locale configuration.
Kenneth Barber commented
Alternatively, the Locale could be based on the language of the server or the browser.