The SmartThings Developers are well into the process of creating stock edge drivers for the mapping and migration devices to the new Lua based SmartThings Edge Environment. Many of these drivers have already been downloaded, or will be downloaded to your SmartThings or Aeotec Hub. Most drivers will be applied seamlessly without any need for any intervention from you. However, some devices which are not natively supported within SmartThings may require you to source a compatible driver from SmartThings Community for manual application.
Edge drivers for non-native devices can be sourced and downloaded from developer or manufacturer driver channels. Downloaded drivers can be immediately applied by removing device from the SmartThings App and then reinstalling the device. Alternatively, you have the option to wait to see if your device is assigned a stock driver. If a stock driver is assigned, but the device is not functioning as expected, then you may download the correct driver to update the device without the need to uninstall and reinstall your device.
Since the Third Realty Blind is not natively supported in SmartThings, it will likely be migrated to the ‘Zigbee Window Treatment’ driver which is a SmartThings Beta stock driver. I have tested and found that this stock driver will not provide all of the features and functionality that is currently available within the former Groovy stock device type handler. This means that eventually, you will likely need to download and install the appropriate custom driver to apply to your Third Reality Blind.