How can I create a seperate SSID for 2.4GHz IoT devices only - on my Netgear ORBI RBK53 WIFI ?

Netgear has set up a community forum specifically for the Orbi AC products. Most of the people who watch that forum are more likely to have experience with Orbi and know how to work it better than those of us who follow this router forum. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/Orbi/bd-p/Orbi

Separation of SSID on Orbi systems is not supported. 

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear
Thank you.