This is a new O2M data conversion tool available at
It is a practical example of using one-to-many (O2M) mapping for the handling of resources from an external server.
In this case we summon a remote server at the European Central Bank (ECB) which handles currency exchange rates. Reference rates are updated at around 16:00 CET by ECB so you get the most recent exchange rate results.
Just input a value and press the Enter key. No need to mess over and over with annoying pull-down menus or remember currency acronyms.