Hi,
So sorry for such a late reply.
Currently our plugin only supports getting exchange rates from the WooCommerce Multilingual (WPML) plugin. If you have any other plugin in mind, please let me know and I’ll add it to our plugin.
P.S. Just to be sure we are on the same page – you don’t need any other plugin for the exchange rates – with our “Automatic Currency Exchange Rates Options > Update periodically from server” option you can update the exchange rates directly from the ECB or fixer.io servers, without any external plugins. Our “Get from plugin” option is only needed if you are already using some multi-currency plugin, e.g. currency switcher, and you want to keep the exchange rates synchronized in both plugins. Hope you get the idea.
Hope that helps. Please let me know if you have any questions.