Hi @KNOXY-UK
Welcome to the Sonos Community!
I confess I have never heard of EWE before, so I cannot really answer your question directly, but I think you may be interested in the just-launched Early Access Sonos 27mcp feature. You can read more about it at the link below.
Please note that Alexa+ is not yet named specifically, and that the feature is still in Early Access, but it is certainly a huge step in the right direction!
For EWELink specifics, I would have to refer you to EWELink themselves - we have no documentation on the service at all.
My posting here will get the thread back on the list of those most recently active - perhaps a community member will see it and be able to assist.
I hope this helps.