Somfy Tahoma IO Awning integration

Hi, I have just installed an awning with 2 IO motors (one for the awning and one for its sunshade). I also have the Tahoma hub and I can control the 2 motors with that via Google Home.
How do I set about using webCoRE to control these motors. (NB I have experience of webCoRE but can’t see how to get the new SmartThings app or webCoRE to see these motors .
I can see there has been discussion around Somfy products for some time but this seems to have fizzled out a couple of years ago.
Where do I go to get a Somfy IO device handler for webCoRE?
Thanks in advance,