Docker for Windows support

Hi. I'm new to Rider (loving it btw!), and I see there's built-in Docker support. However all the settings seem to refer to Docker Machine, which I don't think Docker for Windows uses? Rider certainly can't find my HyperV Docker VM. I thought Docker Machine was only used in the old Docker Toolbox / VirtualBox (which is quite legacy). Docker for Windows does install docker-machine - but if I do a "docker-machine ls" - there are no results - but Docker is running locally in a HyperV VM.