On the iHost in Node Red if I want to create a TRV there are lots of categories to pick from but no TRV option.
How do I create a virtual TRV?
Are you looking for nodes like this?
I bet you would get a better answer from the node-red forum.
No. Use the eWeLink nodes to create a virtual device and look at the drop-down menu of device types: there is no TRV.