Hi. The first post in this topic has the info, but basically you go to this channel invite, enroll your hub, and select the Virtual Devices V2 driver to install to your hub. The actual driver install to your hub can take up to 12 hours to happen, so keep that in mind. But once the driver is installed on your hub, the next time you use the SmartThings app to do an Add device / Scan for nearby devices, you’ll get a new device created in whatever room your hub device is in, called “vEdge Creator V2.94”. You can then open that device and create whatever type of device you need.
I’ll add that if all you need is a simple virtual switch and nothing more, then I’d recommend using the new SmartThings-native virtual switch devices. These can be created either with the CLI or my API Browser+ web app. If you have an Android mobile device, you might also be able to also create it within the app. Otherwise, my vEdge driver has a number of different device types as well as various options within each that you can explore.
Feel free to ask if you need more help.